73
Government of India Ministry of Micro, Small & Medium Enterprises -Course Material - ESDP On ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate, Nunhai, Agra 0562- 2280879/ 2280882(F) Website:- www.msmediagra.gov.in E-mail:- [email protected]

‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

  • Upload
    others

  • View
    13

  • Download
    3

Embed Size (px)

Citation preview

Page 1: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

Government of India

Ministry of Micro, Small & Medium Enterprises

-Course Material -

ESDP On

‘Computer Hardware Maintenance

& Networking’

Prepared by:

34, Industrial Estate, Nunhai, Agra 0562- 2280879/ 2280882(F)

Website:- www.msmediagra.gov.in E-mail:- [email protected]

Page 2: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

fo"k; lwph

dzekaad fooj.k ist la[;k

1 m|ferk ,oa m|eh ds xq.k 1

2 m|fe;ksa ds fy;s nl ea= 4

3 m-iz- m|ksx funs’kky; 8

4 Hkkjrh; y?kq m|ksx fodkl cSad 9

5 m-iz- foRrh; fuxe 11

6 m-iz- jkT; vkS|ksfxd fodkl fuxe 12

7 jk"V~zh; d`f"k vkSj xzkeh.k fodkl cSad 13

8 mRikn p;u ,oa volj vfHkKku 15

9 izcU/k ,oa foi.ku lw= 18

10 y?kq m|ksxksa esa dEI;wVj ,oa lwpuk rduhd 23

11 vkbZ-,l-vks- 9000 25

12 mRiknu izcU/k 27

13 fu;kZrd dSls cusa 29-31

Technical Notes -:

14 Assembling the PC 32-43

15 Troubleshooting 44-62

16 Networking 62-67

17 Questionnaire 68-71

Page 3: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

1

m|ferk ,oa m|eh ds xq.k

vkids izR;sd O;ogkj ds ihNs dksbZ dkj.k vo'; gksrk gSA ;fn ge [kkus ds fy,s dqN <wa<

jgs gSa ;k [kk jgs gSa rks bldk vFkZ gS gesa Hkw[k yxh gS vkSj gekjs [kkus ds O;ogkj ds ihNs ,d dkj.k gS & Hkw[k] Hkw[k I;kl tSlh dqN vko';drk,¡ gekjh nSfud vko';drk,¡ gSaA tc vko';drkvksa dk tUe gksrk gS rks muds iwfrZ ds fy, gekjs vanj ,d cy dk;Z djrk gS tks gesa fn'kk iznku djrk gS vkSj ;g cy rc rd jgrk gS tc rd gekjs mís'; ¼y{;½ dh iwfrZ u gks tk;sA blh cy dks ge Lej.k ;k vfHkizsj.kk djts gSaA nwljs 'kCnksa] esa fdlh Hkh mís'; vFkok vko';drk dh izkfIr ds fy, tks O;ogkj Hkkoukvksa ls vksr&izksr vkSj bPNkvksa ls Hkjiwj fn[kkbZ iM+rk gS mls ge mRizsfjr O;ogkj djrs gSaA mijksä crkbZ xbZ vko';drk,¡ gekjh 'kkjhfjd vko';drk,¡ dgrs gSa ijUrq bu vko';drkvksa ds vfrfjä O;fä lekt esa jgdj dqN vU; vko';drk,¡ vftZr djrk gS tSls fdlh ls vPNs lEcU/k c<+kus dh vko';drk] nwljksa ij izHkwRo cukus dh vkio';dr] thou esa dqN izkIr djus dh vko';drk bR;kfnA bUgsa vftZr vko';drk ;k lkekftd vko';drk dh laKk nsrs gSa vkSj budh iwfrZ ds fy, tks vkUrfjd cy dk;Z djrk gS mls lkekftd mRizsj.kk dgrs gSaA ;g lkekftd vko';drk,¡ ekuo dks i'kqvksa ls vyx djrh gSA bl {ks=k esa fd, x;s 'kks/k dk;ksZ vkSj vuqla/kkuksa ds vk/kkj ij ;g ns[kk x;k gS fd eq[; :i ls euq"; esa rhu izdkj dh lkekftd mRiszj.kk,¡ gksrh gSa& miyfC/k] izHkqrk vkSj lEcU/kA izR;sd O;fä ds thou esa fHkUu&fHkUu izkFkfedrk,¡ gksrh gSa dksbZ nwljksa ls vPNs laca/k cukus dks izkFkfedrk nsrk gS rks dksbZ nwljksa ij izHkwrk cukus dks izkFkfedrk nsrk gS rks dksbZ thou esa dqN izkIr djus dh izkFkfedrk nsrk gS vFkkZr~ gj O;fä esa ;s rhuksa vko';drk,¡ i`Fkd&i`Fkd rhozrk rFkk izcyrk esa gksrh gSA fdlh esa miyfC/k vfHkizsj.kk lcls vf/kd gksrh gS rks fdlh esa izHkqrk] fdUrq ,d lQy m|eh cuus ds fy, O;fäesa miyfC/k mRizsj.kk dk izcy gksuk vko';d gSA ;fn O;fäds vUnj thou esa dqN izkIr djus] lEcfU/kr fLFkfr;ksa esa mRÑ"Vrk ykus]= nwljksa ls izfrLi/kkZ dh Hkkouk ls vksr&izksr dk;Z djus dh bPNk gksrh gS vkSj bldh iwfrZ ds fy, og O;ogkj djrk gS rks mls miyfC/k mRizsj.kk ls vksr&izksr dk;Z djus dh bPNk gksrh gS vkSj bldh iwfrZ ds fy, og O;ogkj djrk gS rks mls miyfC/k mRizsj.kk ls vksrizksr dgrs gSaA izHkqrk mRizsj.kk dh igpku gesa O;fä dh nwljksa ij gkoh gksus] nwljksa dks izHkkfor djus rFkk lewg esa og Lo;a fu.kZ; ysa bl vfHkyk"kk ls gksrh gSA izHkqrk mRizsj.kk okys O;fä nwljksa ij viuk izHkqRo cuk, jgrs gSa] ;s vuq;kf;;ksa dh nqfu;ka esa jguk ilan djrs gSaA lEcU/k vfHkizsj.kk dh vf/kdrk okys O;fä dh izFke vko';drk nwljksa ls HkkoukRed laca/k cukus dh gksrh gSA ;s nwljksa ls lkSgknZiw.kZ laca/k cukus dks rRij jgrs gSa nwljksa ls Lusg ikuk vkSj nwljksa dks Lusg nsuk budh izFke vfHkyk"kk gksrh gSA buds thou dk mís'; nwljksa ds fy, R;kx djuk rFkk vkilh laca/kksa esaa ruko ls cpdj jguk gksrk gSA miyfC/k mRiszj.kk okys O;fä thou esa dqN izkIr djus dh izcy bPNk j[krs gSaA buds vUnj nwljksa }kjk fu/kkZfjr ekin.Mksa esa Js"Brk ikus dh bPNk gksrh gSA ;s Lo;a iqjkuh miyfC/k;ksa rFkk fu"iknuksa dks igys dh vis{kk csgrj cukus dk iz;kl djrs gSaA y{; dks izkIr djus gsrq dqN u;k djus dh bPNk rFkk fujUrj dk;Z'khrk budh miyfC/k mRizsj.kk dks n'kkZrh gSA ijUrq ,d m|eh esa miyfC/k vfHkizsj.kk ds vfrfjä vU; xq.k ,oa dkS'ky Hkh gksus pkfg,A ,d lQy m|eh esa fuEufyf[kr xq.k gksus pkfg, bu xq.kksa ds vHkko esa mUgsa fodflr fd;k tk ldrk gSA ;s xq.k gSa& 1. y{; fu/kkZj.k o dk;Z izfrc)rk % vxj vkidk y{; fuf'pr gksxk rks vki ml vksj dqN Bksl dke dj ldsaxsA y{; fuf'pr gksus ds ckn vkidks yxkrkj mls iwjk djus ds fy, lksprs jguk gSA tc vki vius y{; ds fy, lksprs jgsaxs rks og vkidh vko';drk dk :i ys ysxk rFkk vki mldh iwfrZ ds fy, dk;Z djus yxsaxsA t:jr iM+us ij blds fy, viuh f'k{kk esa Hkh o`f+) djuh iM+sxhA vko';d izf'k{kM+ fyft, rkfd vki nwljksa ls de u jgsaA

Page 4: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

2

2. le; izfrc)rk % ,d vPNs m|eh ds fy, le; ,d lalk/ku gSaA og vius le; dk vf/kdkf/kd lnqi;ksx djrk gSA le; dk /;ku j[kus o bldk lnqi;ksx djus okyk O;fä gh vkxs pydj m|e dh nqfu;k esa lQy gksrk gSA vkidks vius le; dk [kkl /;ku j[kuk gsA fdl pht ij fdruk le; yx jgk gS rFkk fdruk yxuk pkfg, o dgk¡ ij le; dk lgh bLrseky gks ldrk gS ;g lc ckrsa ,d lQy m|eh dks irk gksuh pkfg,A tks O;fä le; dk /;ku j[krk gS ogh vious dk;ksZ dks O;ofLFkr rjhds ls dj ikrk gS rFkk ogh vkxs pydj m|e dh nqfu;k esa lQy Hkh gksrk gSSA ogh nwjn'khZ gksrk gSA ßle; iSlk gSß ;g fopkj ges'kk cuk;s j[kuk pkfg,A 3. n`<+ ladYi % ,d lQy m|eh cuus ds fy, vkieas n`<+ fu'p; vo'; gksuk pkfg,A ;fn vius fdlh dk;Z dks iwjk djus dh Bku yh gS rks fu';p dj yhft, fd ijs'kkfu;k¡ vkus ij Hkh mls iwjk djuk gSA 4. yxu'khyrk % ;g xq.k vkidks ,d lQy m|eh cuk,xkA vkidks Hkys gh 'kq: esa dqN fnDdrsa vk,a ij vki vius dk;Z esa yxs jgsaA 'kq: dh vlQyrkvksa dls fcYdqy u ?kcjk;sa] vlQyrkvksa ls gh vki lh[ksaxs rFkk vxyh ckj ;g xyrh vki ugha gksus nsaxsA fgEer er gkfj,A tqVs jfg;sA xyfr;k¡ uk nksgjkj,a] xyfr;ksa ls lh[ksa 5. vk'kkoknh n`f"Vdks.k % ,d v|eh dks thou ds gj Hkys cqjs {k.kksa esa vk'kkoknh utfj;k j[kuk pkfg,A ;fn vkidk utfj;k fujk'kkoknh gS rks vki mls cny Mkfy,A vk'kkoknh utfj;s ls ns[kus ij gh vki lQyrk izkIr dj ldsaxsA ;fn fujk'kkoknh gS rks vki vkxs c<+us dh dksf'k'k gh ugha djsaxsA blfy;s ,d lQy m|eh dk vk'kkoknh gksuk cgqr t:jh gSA 6. lQy gksus dh bPNk % gks ldrk gS fd vki bl 'kh"kZd dks i<+dj fcuk lksps le>s vkxs c<+sa ij ugh :fd;s] vkidks lkspuk gS fd vki dSls lQy gksaxs\ vki esa D;k&D;k dfe;k¡ gSa mUgsa dSls iwjk fd;k tk ldrk gS\ tc rd vki lQy gksus dh n`<+ b{Nk ugha j[ksaxs] vki lQy ugha gksaxsA 7. vkRefo'okl % vkidks vius esa fo'okl gksuk pkfg, fd vki bl {ks=k esa lQy gksaxsA vxj vkidks dksbZ 'kd gS rks vki vius vkRefo'okl dk fodkl dhft,A pkgusa ls D;k ugha fd;k tk ldrkA mfä gSS ßtgka pkg ogk¡ jkgß ;fn vki ;kn j[ksa fd lQy m|eh Hkh ,d le; vki gh dh rjg lksprs Fks rks vkidk vkRe fo'okl c<+sxk fd vki Hkh lQy gks ldrs gSaA 8. lrdZrk o laosnu'khyrk % ,d lQy m|eh cuus ds fy;s vius fopkj ges'kk [kqys j[ksaA vius vklkikl dh tkudkjh jf[k,A vkyl dks NksfM+;s] ltx jfg,A gks ldrk gS vkidks vpkud ,slk fopkj vk tk;s tks vkids dke dk gks ;k dqN dke dh ckr gh irk py tk;sA blds fy, vkidks viuk fnekx 'kkar o lrdZ j[kuk gksxkA 9. uik rqyk tksf[ke ysus dh {kerk % vki m|eh cu jgs gSa rks vki ;g dksf'k'k dhft, o vius dks bruk etcwr cukb, fd vki fdlh Hkh tksf[ke ls u MjsaA Mjdj dke djus dh vknr NksM+ nsaA m|ksx yxkus esa fuf'pr tksf[ke ysuk gh iM+rk gSA tks Hkh lQy m|eh gS mUgksaus tksf[ke fy;k Fkk rHkh os vkt ,, lQy m|ksxifr cu lds gSaA 10. usr`Ro ds xq.k % ,d m|eh esa ,d usrk ds xq.k gksus pkfg,A tSls usrk ckrkssa ls nwljksa dks izHkkfor dj viuk dke djok ysrk gS] nwljksa dks viuh ckrksa ls [kq'k dj ysrk gS rFkk fofHkUu tfj;s ls rjh&rjg dh ckrksa dk irk j[krk gS mlh rjg vkidks Hkh ;g lc djuk iM+sxkA u,&u, fopkj ds fy, vki ges'kk vious dks rS;kj j[ksaA ij mUgsa ij[k dj gh bLrseky esa yk,aA

Page 5: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

3

11. /kS;Z % 'kq: esa gks ldrk gS fd vkidks ,dne lQyrk u feys vkSj vkidks dkQh le; rd la?k"kZ djuk iM+s] blfy, vkidks /kS;Z rFkk vk'kkoknh n`f"Vdks.k viukuk pkfg;sA gks ldrk gS fd igys vki vlQy gks tk;sa ij /khjs&/khjs vki lQyrk vo'; izkIr djsaxsA 12. nwjnf'kZrk % ,d lQy v|eh dks nwjn'khZ o cqf)eku gksuk pkfg,A cqf) ls gh og tku ik,xk fd D;k djus ls og lQy gksxk rFkk D;k djuk mlds fy,s gkfudkjd gks ldrk gSA 13. leL;k lek/kku dh {kerk % vkidks viuh leL;kvksa ls vPNh rjg fuiVuk lh[kuk gksxkA mu ij /;ku u nsuk nwljksa ij Vky nsuk vkidks NksM+uk gksxk tSls Hkh gks vki mUgsa lqy>kuk lhf[k,A 14. volj vfHkKku % vkidks vc ;f lh[kuk gS fd vki vius fy, lgh voljksa dks igpku dj mudk iwjk&iwjk ykHk fdl izdkj mBk,aA 15. O;oLFkk o xq.koRrk ds izfr lpsr gksuk % vkxj vki vius dk;Z dks O;ofLFkr j[krs gSa rFkk vius mRikn dk Lrj Å¡pk j[kus dh bPNk j[krs gSa rks vki vo'; lQy gksaxasA 16. Lora=krk dh bPNk % D;k vki viuk Lokeh Lo;a gh cuuk pkgrs gSa rFkk fdlh ds v/khu dk;Z djuk ugha ilUn djrs\ rks vkids fy, ;gh jkLrk Bhd gS ] mijksä xq.kksa dh lwph ns[kdj vki ?kcjkb;s reA vki vius esa bu xq.kksa dk fodkl dj ldrs gSa A 17. vkRe izsj.kk % D;k vki crk ldrs gSa fd vkius m|e yxkus dh ckr D;ksa lksph\ D;k vkius cpiu esa dksbZ liuk ns[kk Fkk blfy, ;k fd vkids fdlh fe=k us QSDVªh yxkbZ gS] ;k lM+d ij pyrs gq, ek:fr dkj esa cSBs yksxksa dks ns[kdj vkidk Hkh eu djrk gS fd vkids ikl Hkh ,d vkyh'ku caxyk] dkj] Mªkboj vkfn gks ;k vkius fdlh if=kdk esa m|ksxifr;ksa ds ckjs esa i<+k vkSj muls izHkkfor gq,\ lksfp;s /khjs&/khjs ?kVukvksa dks [kksyrs tkb;s] nsf[k;s ;kn vk;k u! gks] vc bllh ?kVuk ij /;ku nhft,A bldks iwjk 'kq: ls vUr rd lksfp;sA blls vkidh mRizj.kk c<+sxhA vkidh dke djus dh f>>d nwj gksxh o vki og dk;Z djuk vkjEHk dj nsaxs tks vki okLro esa djuk pkgrs gSaA 18. jpukRed xq.k % m|eh esa ;g xq.k gksuk pkfg, fd og fdlh dk;Z dks uohu <ax ls dj lds o dk;Z dk izorZu dj ldsA 19. mÙkjnkf;Ro dk cks/k % m|eh dks vius mÙkjnkf;Roksa dk cks/k gksuk pkfg;s tSls lekt ds izfr] vius deZpkfj;ksa ds izfr] i;kZoj.k ds izfr vius drZO;ksa dks le>us dk xq.k gksuk pkfg;sA

Page 6: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

4

m|fe;ksa ds fy, nl ea=

MkW0 jk0 R;kxjktu

Hkwfedk

vktdy ds i<+s&fy[ks ;qod vkSj ;qofr;k¡ ,slk le>rs gSa fd vxj mUgsa ukSdjh u feyh rks muds lj ij

vkleku gh VwV iM+sxkA rFkk] vxj] ljdkj mUgsa ukSdjh u fnyk;s rks vkSj dkSu mUgsa ukSdjh ;k jkstxkj nsxkA

D;k ;s lc ckrsa lp gSa\ D;k bu ckrksa esa dqN rF; gS\ vkSj vxj gS rks ge] bl ns[k ds ukxfjd] bu

ukStokuksa ds vkalw iksNus ds fy, D;k dj jgs gSa\

dgha&dgha ;s Hkh dgk tkrk gS fd] vki csjkstxkjh gVkus ds fy;s bu ;qod&;qofr;ksa dks izf'k{k.k nsdj

m|eh cuk;saA bldk eryc ;g gksxk fd ftu O;fä;ksa esa dke ikus dh ;ksX;rk ugha gS] mUgsa Hkh m|eh cuk;k

tk;sA bldk ;g vFkZ gksxk fd csjkstxkjksa dh la[;k vkSj c<+kbZ tk;s D;ksafd lekt] tks vc rd csjkstxkj

bathfu;j] MkDVj vR;kfn ds ckjs esa jks jgk Fkk] og vc ls csjkstxkj m|fe;ksa ds ckjs esa jksuk vkjEHk djsaA

pfy;s [kSj] ge flQZ csjkstxkjh ds ckjs esa fy[kuk ugha pkgrs gSaA ijUrq geus m|fe;ksa dh vkRe 'kfä dks

c<+kus ds fy;s viuh dye mBkbZ gSA

m|eh dh ---------x.ks'kk; ue%

,d iy ds fy, ge lkspsa fd gekjs ukStoku us m|eh cuus dk bjknk iDdk dj fy;k gSA gks ldrk gS fd

mlus blds fy;s dqN izf'k{k.k Hkh ik fy;k gks rFkk blds ckn gekjs bl m|eh us cSad ls isls ysdj viuk

dkjksckj Hkh LFkkfir dj fy;k gks] ;kfu eku yhft;s fd gekjs m|eh us ßx.ks'kk; ue%ß dj fy;k gksA

vc vk;h u ckr ! gekjk ;g izFke ih<+h dk m|eh vc m|fe;ksa ds ßeSnkus taxß esa dwn iM+k gSA

m|e dks LFkkfir djuk ,d ckr gSa] ysfdu mldks pykus] mlls iSlk dekuk vkSj c<+kuk oxSjg&oxSjg esa dqN vkSj

gh ckr gSA

D;k ge ,sls m|fe;ksa dks dqN ea=k fl[kk ldrs gSa \ pfy;s ns[krs gSaA

ea=ksa dks lefiZr djus ls igys gesa vius vki ls iwNuk gksxk fd&,slh D;k t:jr iM+h fd ge bl jkLrs

dh vksj /;ku nsus yxs \ [ksj] cgqr lky igys Hkr` gfj us dgk Fkk&

ßveU=ka v{kje~ ukfLr] ukfLr ewyeuks'/ke~A

v;ksX;% iq:"kksa ukfLr] ;kstd% r=k nqqyZHk %AAß

vFkkZr~ vki fdlh Hkh v{kj ls ,d ea=k fudky ldrs gSA bldk eryc ;g ugha gS fd ;g ys[kd Hkh

m|eh dgrs gq, blls nl ea=kfudkyus tk jgk gSA cfYd ;g Hkh lp gS fd vki xkfy;ksa ls Hkh ,d ea=k fudky

ldrs gSaA

egkdfo dkyhnkl ,d xM+fj;s dks jktk Hkkst ds njckj esa ysdj x;s vkSj ogk¡ mUgsa xq: dgdj mudk

ifjp; djok;kA tc ml xM+fj;ks dks dfo;ksa us dqN cksyus dks dgk] rks og O;fä ßog] ogß dj dqN cksyk rc

,slk eglwl gqvk fd xq: th cdjs dks cqyk jgs gksaA bl ij njckj ds lnL; gal mBs rks dkyhnkl ukjkt gksdj

dgus yxs fd lEekuh; lnL;ksa dks D;k bruh Hkh cqf) ugha fd os bruh NksVh lh ckr Hkh le> u ldsaA ;g

dgdj egkdfo dkyhnkl us mlh le; ßcg]cgß ij ,d dfork cukbZA Åij fyf[kr Hkr`Zgfj ds 'yksd dh nwljh

iafä dk vFkZ ;gh gS fd fdlh Hkh ikS/ks ls vki ,d vkS"kf/k cuk ldrs gSaA blesa rks dksbZ 'kd ugha gSA vxyh iafä

esa os dgrs gSa fd dksbZ Hkh iq:"k ;k L=kh ges'kk ds fy;s 'kSrku ugha gksrkA

Page 7: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

5

ijUrq leL;k gS gh D;k\ vkidks dksbZ ;kstd&;kfu m|eh] izcU/kd oxSjg dh deh gSA pkgs Hkr`Zgfj ds fnu

gksa ;k orZeku dk le;] ;g iafä cgqr gh egRoiw.kZ gSA

bu lcds dgus dk reyc ;g gS fd vxj vki esa m|ferk ds y{k.k gksa rks vki m|eh cu tkb;s vkSj

vius ekxZ ls er gfV;sA vc vk;k bl ea=kksa dk le;A vkb;s bu nl ea=kksa dh vksj ns[krs gSaA

igyk ea=k

ßtxr ls ,d gks tkvksß

gesa ;g ;kn j[kuk gksxk fd ge lc bl txr~ ds cgqr NksVs ls vax gSaA ge lc ds iSnk gksus ls igys

txr esa o`{k] ufn;k¡] igkM+] lkxj vkSj thojkf'k FksA vkSj bl 'kjhj dks NksM+dj ge tc pys tk;saxs rc Hkh txr~

,sls gh pysxkA vxj txr~ esa dksbZ ßifjorZuß gks] rc Hkh gekjh vkRek dks ;g 'kk;n gh ekywe gksxk fd dqN

ifjorZu gq, gSaA ifjorZu gksa ;k ugha] gekjh vkRek dks dksbZ vUrj ugha iM+sxkA

blfy;s gesa ;g ;kn j[kuk gksxk fd bl NksVh lh ßtUe ls ysdj e`R;q rdß dh ;k=kk esa ge D;ksa u

txr~ ds lklFk ,d gks tk;saA

vFkkZr~ vkidks mRiknu 'kq: djus ls igys ;s lkspuk gksxk fd D;k igys ls cktkj esa dqN yksx blh oLrq

dk mRiknu dj jgs Fks\ vxj ,slk gS rks vkidk blesa D;k ;ksxnku gS\ vr% tc Hkh ge fdlh fLFkfr dks cnyuk

pkgsa rks lcls igys gesa vius vkidks cnyuk gksxkA

nwljk ea=k

ßHkfä vkSj I;kj dks viukvksß

,sfrgkfld rkSj ij ns[kk tk;s rks Hkkjr ds egku iq:"kksa us Hkfä ls gh Hkxoku~ dks cka/k fy;k FkkA felky

ds rkSj ij Hkä izâkn] /kqzo] ehjk] xkSre cq)] egkohj] xq: ukud] jkeÑ".k ijegal] foosdkuUn bR;kfn] bR;kfnA

nf{k.k Hkkjr ds R;kxjkt uked ,d e'kgwj xk;d rsyqxq esa xkrs gSa ßlaxhr Kkueq HkfäfoukßA ge ;gh dguk pkgrs

gSa fd pkgs vki Hkxoku ls oj ekaxs ;k cSad izca/kd ls _.k] Hkfä dk jkLrk idfM+;sA

lkFk&lkFk ;g Hkh ;kn jf[k;s fd vk/kqfud nqfu;k esa ßO;kikj Kkueq ;qfä fcukAß

tc vki Hkfä vkSj I;kj Hkjh n`f"V ls vius dkjksckj ,oa mRikn dks ns[ksaxs rc vki eglwl djsaxs fd

vkidk [kkuk] ihuk] vkjke vkSj izflf) dqN Hkh ugha gSA vki vius dkjksckj ls fcYdqy ,d gks x;s gSaaA tSls fd

vtqZu dks i{kh dh vka[k gh fn[kykbZ nh vkSj dqN Hkh ughaA

rhljk ea=k

ßgaluk lh[kksß

O;kikj ds lapkyu esa vkidks ;qfä ls dke ysuk gksxkA tc dHkh vkids xzkgd vk;sa mudk Lokxr gal dj

dhft;sA pkgs og xzkgd mnkl gh D;ka u gksa] vkidh eqLdqjkgV dks ns[kdj og izlUu gksxk vkSj lkFk gh lkFk

vki dh fcØh Hk c<+sxhA

ysfdu ge ,d psrkouh nsuk pkgrs gSaA og ;g gS fd lc O;fä;ksa ds lkeus vius iwjs nkar fn[kkuk

pkfg;sA vxj ,slk djsaxs rks vkidks cgqr lh dfBukbZ;ksa dk lkeuk djuk iM+sxkA og dSls\ vkxs if<+;s rksA

,d ckj geus ,d ukStoku m|eh dks ,slk gh cryk;kA og ukStoku iwjs /;ku ls bu ckrks dks vey esa

yk;kA tc ge bl ?kVuk ds ,d lku ds ckn ml m|eh ls feys] rc geus ns[kk fd og m|eh yEcs psgjs vkSj

mnkl eq[kM+s ds lkFk gesa xkfy;ka nsus yxkA geus iwNk&ßvjs HkkbZ] D;k gqvk\ß og dgus yxk&ßvkius crk;k u]

Page 8: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

6

galks vkSj galrs jgksA bl lcd dks vey esa ykus ls eSa fnokfy;k gks x;k gwaA esjh gkyr ns[k jgs gSa u vki\ßgeus

iwNk fd D;k] galus ls FkksM+s gkyr [kjkc gks ldrh gS\ m|eh th dgus yxs&ßbruh rks vdy esjh Hkh gSA vkids

dgus ds eqrkfcd gj ,d ds lkeus geus vius nkarksa dks fn[kk;kA ,d fnu ,d vk;dj vf/kdkjh esjs ikl vk;kA

mlds lkeus Hkh eSA izlUu gksdj galus yxkA mlls D;k gqvk ns[krs gSa u esjh gkyr\ß

vr% ge ;g crkus pkgsaxs fd vkidks ßdc galuk gS vkSj dc jksuk gSAßtc dksbZ xzkgd vkids lkeus vk;s]

[kwc gafl;sA izlUu gks tkb;sA mlds vykok dksbZ vkSj vk tk;s vki mnkl gks tkb;sA vki mnkl psgjs ls mlls

ckr dfj;sA

pkSFkk ea=k

ßrkjhQ djuk lh[kksß

O;kikjh ges'kk nsljs yksxksa dh rkjhQ djrs gq, viuk iSlk cukrk gSA rkjhQ djr esa vkidh dksbZ rdyhQ

ugha gksuh pkfg;sA rkjhQ ls Hkxoku Hkh Mjrs gSa&D;ksa\ blfy;s fd ftldh vki rkjhQ djrs gSa og

vkfgLrk&vkfgLrk vius vki j j[ks gq, dkcw dks [kks cSBrk gS&jghe dk dguk gS&ßdjr djr vH;kl ls tM+er

gksr lqtkuA jljh vkor tkr rs fly ij gksrk fu'kkuAß blh rjg iRFkj ds Hkh fi?kyus dh mEehn gS] rkjhQ lsA

vkidh rkjhQ ls Mjrs gq, Hkxoku Hkh vkids lkeus ,slh dfBukb;ksa dks [kM+k djrs gSa fd iwfN;s erA

dfBukbZ;ksa dks ns[kdj dksbZ u dksbZ Hkxoku dks xkfy;ka rks nsxkA rHkh Hkxoku Hkh ftUnk jg ldrs gSa gS u\

iakpok ea=k

ßvkenq'eu dks igpkuß

tc dHkh fdlh ls dke djkuk pkgrs gSa] ml O;fä ls ckr izkjEHk djrs le; fdlh vke nq'eu dh

vksj utj Mkfy;sA vxj ekSle [kjkc gS] ekSle ds ckjs esa 'kq: dhft;sA vxj lM+dssa [kjkc gSa mlds ckjs esa

cksfy;sA vxj nwljs O;fä dh csVh dh HkrhZ fdlh e'kgwj Ldwy esa ugha feyrh ml Ldwy ds izcU/kdksa dks xkfy;k¡

nhft;sA

tc nks vaxzst yksx yUnu ;k vSj fdlh egkuxj esa feyrs gSa] vkil esa lcls igys xUns ekSle ds ckjs esa

gh ckr djrs gSaA

vke fe=k ls ßvke nq'eußds ckjs esa yksx ,dne ljy rjhds ls le> tkrs gSaA

NBk ea=k

ßvk/kqfud jkek;.k fy[kksß

lkjs ns'k esa xjhch js[kk gVkus dk vkUnksyu py jgk gSA ge Hkh D;ksa u ,d ukjk yxk;sa ßlc js[kkvksa dks

gVkvksA ß,sls ukjksa ls FkksM+h gh dksbZ xjhch gV tk,xh ;k vki js[kk dks ikj dj ldsaxs\

xjhch dks gVkus ;k js[kk dks ikj djus ds fy;s] D;k vkids ukjksa ls dke py tk;sxk\

ge lc tkurs gS fd jkek;.k dh iwjh dFkk] lhrk th ds ßy{e.k js[kkß ikj djus ls gh cuh ftls ckYehfd

th us jpkA ;g Hkh dguk lgh gS fd jkek;.k esa vxj ßy{e.k js[kk ugha] rks jkek;.k ughaAß;g dguk mfpr gh gS]

D;ksafd vxj lhrk th ml js[kk dks ikj ugha djrh] rks jko.k ls ;q) dSls gksrk] rFkk guqeku th tSls Hkä gedks

dgka feyrs\ blfy;s vki Hkh Lo;a ugha cfYd gekjs ns'k ds vU; xjhc vkSj fiNM+s oxZ ds yksxksa dks xjhch js[kk

ikj djus esa enn nhft;s vkSj ,d vk/kqfud jkek;.k] tks Hkkjr dh ,sfrgkfld uezrk] ohjrk vkSj lH;rk dks vkSj

Hkh Åps LFkku ij ys tk lds] fy[ksaA lkFk&lkFk vki Hkh ,d vk/kqfud ckYfefd cusaA

Page 9: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

7

lkroka ea=k

ß[kpksZ ij dkcw djksß

;g ,d vke ckr gS fd u;s m|eh] tSls gh iSlk gkFk es vkrk gS mldks mM+kus dh dksf'k'k esa yx tkrs

gSaA gksrk ;g gS fd& ßvkenuh vëuh [kpkZ :i;kß vkSj vxj vkenuh de gks vkSj [kpkZ T;knk rks ;g dSls py

dlrk gSA

vkBoka ea=k

ßthou esa vkSj phtsa Hkh gSaß

tc vki m|eh cusaxs rks gesa iwjk ;dhu gS fd vki vkus ;qus gq, jkLrsa esa vo'; lQy gksaxs] ij ;g ;kn

jf[k;s fd ftUnxh esa iSls ds flok; vkSj Hkh cgqr lh phtsa gSa] ftudh vksj Hkh vkidks /;ku nsuk gksxkA

ftl uxjh esa vki jgrs gSa] mldh lqUnjrk] izxfr vkSj mUufr ds fy;s] vkidks Hkh lg;ksx djuk gksxkA

vki ftl lM+d ij jgrs gSa] ml lM+d dks lkQ vkSj lqUnj j[kuk gksxkA gekjs ns'k ds egku iq:"kksa ds ckjs esa]

ytksxksa dks le;&le; ij /;ku fnykuk gksxk] rkfd yksx fey tqydj ft;sa vkSj ,drk dh vksj c<+saA

uok¡ ea=k

ßvkalw iksaNksß

vxj vkidks iSlk cukuk gS vkSj vPNs <ax ls m|eh; thou fcrkuk gS] rks vki fiNM+s oxksZa ds yksxksa ds

ckjs esa o xjhcksa ds ckjs esa le;&le; ij lksfp;sA vkSj lkFk gh vius dkjksckj dh leL;kvksa dks Hkh nsj djus dk

iz;Ru dfj;sA D;ksafd vkids dkj[kkus ds vkl&ikl jgus okys xjhcksa dh ns[kHkky vkSj vPNs LokLF; ls gh vkids

dkj[kkus dk LokLF; vPNk gks ldrk gSA

dkyhnkl th dgrs gSa&ßotznfi dVksje~] e`nfu dqlqefn;fiAß&vFkkZr~] vkidks dke djrs le; otz tSls

dBksj gksuk pkfg;sA ysfdu deZpkfj;ksa ,oa vius O;fäxr thou esa ,d Qwy tSls eqyk;e Hkh gksuk pkfg;sA

nloka ea=k

ßdkjksckj gh ugha] cfYd vkSj Hkh phtsa ikuk gSaß

vkidk /;ku dkjksckj ij gh ugha cfYd edku cukus esa] ek:fr xkM+h gkfly djus esa] oxSjg&oxSjg ij Hkh

gksuk pkfg,A vkidks 'kk;n gh ekywe gksxk fd e'kgwj odhy ukuk ikydhokyk] vius cpiu esas] ,d vkbZlØhe

[kkuk gh LoxZ ikus leku le>rs FksA os lksprs Fks fd vxj ,d vkbZlØhe fey tk;s rks thou esa vkSj dqN ugha

pkfg;sA nsf[k;s u] vkbZlØhe ekaxus okyk yM+dk dgk¡ igqap x;k gS\ vFkkZr~&vki Hkh edku ;k ek:fr xkM+h

viukus ds ckjs esa lksfp;s vkSj nsf[k;s dSls Hkfo"; esa Åaps LFkku ij igqaprs gSa\

m|ferk gh vkidh meaxksa dks iwjk djus dk ,dek=k ekxZ gSA cs'kd vki ukSdjh <wa< ldrs gSaA ysfdu

ukSdjh nsxk dkSu\ vxj ukSdjh fey tk;s rks ukSdjh dk jkLrk viukb;sA ftl izdkj] vyx&vyx /keZ ds yksx

Hkxoku ls feyus ds fy;s fofHkUu ekxZ idM+rs gSa] mlh izdkj vki m|ferk dk ekxZ vius] ifjokj vkSj vius

ns'kokfl;ksa dh izxfr ds fy, idfM+;sA

jkT; ds gj ,d dksus esa] izxfr y?kq m|ksx djsaA

ns'k esa ,slh uhfr cus ] ,d leku fodkl jgsAA

ekuo] e'khu] leku] izca/k djs m|e ls lEcU/kA

Bhd ysuk budks tku] lalku./ku dk j[kuk /;kuAA

Page 10: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

8

m0iz0 m|ksx funs'kky; ,oa ftyk m|ksx dsUæ dh Hkwfedk Hkkjr tSls fo'kky ns'k ds lEiw.kZ vkS|ksfxd fodkl esa y?kq m|ksxksa] dqVhj m|ksxksa ,oa

xzkeks|ksxksa dh egRoiw.kZ Hkwfedk gSA blds fodkl ds fy, fodsfUær O;oLFkk dh vko';drk dks ns[krs gq, Hkkjr ljdkj us o"kZ 1978 esa jkT; ljdkj }kjk m|ksx funs'kky;ksa ds vUrxZr ftyk m|ksx dsUæksa dh LFkkiuk dhA fiNM+s o xzkeh.k {ks=kksa esa vkS|ksfxd fodkl ds dk;Z bu ftyksa ds m|ksx dsUæksa }kjk fd;s tkrs gSA ukMy ,tsUlh ds :i esa ;g dsUæ ftyk Lrjh; vU; foHkkxksa ,oa laLFkkvksa esa leUo; dk dk;Z djrs gSaA rglhy Lrj ij lgk;d izca/kd gksrs gSA bl izdkj ftyk m|ksx dsUæ] m|ksx funs'kky; ds {ks=kh; vax ds :i esa izns'k ds vkS|ksfxd fodkl ds fy, dk;Zjr gSA y?kq m|ksxksa gsrq lqfo/kk;sa 1. ijke'kZ % m|fe;ksa ds ekxZn'kZu gsrq ftyk m|ksx dsUæksa esa ijke'kZ foHkkx gksrs gSaA Hkkoh m|fe;ksa dk lk{kkRdkj dj mldh i`"BHkwfe] vuqHko ,osa vfHk:fp ds vk/kkj ij m|ksx dh tkudkjh ,oa ifj;kstuk rS;kj djus gsrq ijke'kZ fn;k tkrk gSA 2. iathdj.k % ftyk m|ksx dsUæksa esa loZizFke nks o"kZ] ds fy, izLrkfor iathdj.k fd;k tkrk gS ftldk uohuhdj.k vxys ,d o"kZ ds fy, egkizca/kd ftyk m|ksx dsUæ ds }kjk rFkk iqu% ,d o"kZ dk uohuhdj.k m|ksx funs'kky; }kjk fd;k tkrk gSA bdkbZ }kjk larks"ktud dk;Z gksus ij ljdkj }kjk iznÙk lqfo/kk;sa fey ldrh gSA bdkbZ lapkfyr djus ds i'pkr~ LFkk;h iathdj.k Hkh fd;k tkrk gSA 3. djksa esa NwV % xjhc dkjhxjksa o nLrdkjksa gsrq vkS|ksfxd lgdkjh lfefr;ksa dk iathdj.k gksrk gSA bu lfefr;ksa dks foÙkh; lgk;rk ,oa fofHkUu djksa esa NwV dh lqfo/kk feyrh gSA 4. Hkwfe@Hkou % gj ftys esa vkS|ksfxd vkLFkkuk gksrs gSa tgk¡ ij m|ksx yxkus ds fy, vko';d Hkwfe o Hkou fnykus esa lg;ksx fd;k tkrk gSA 5. fofHkUu foÙkh; laLFkkvksa ls _.k gsrq vkosnu %

ftyk m|ksx dsUæ ds ek/;e ls fofHkUu foÙkh; laLFkkvksa ls _.k ysus gsrq Hkh vkosnu fd;k tk ldrk gSA ftyk m|ksx dsUæ }kjk iz/kkuea=kh jkstxkj ds vUrxZr _.k dh lqfr/kk Hkh miyC/k djk;h tk jgh gSA 6. ,dy est O;oLFkk ,d Nr ds uhps ,dy est O;oLFkk ds vUrxZr LohÑfr;k¡ tSls%& fo|qr la;kstu] iznw"k.k vukifÙk izek.k&i=k] bR;kfn] lEcfU/kr ftyk m|ksx dsUæ }kjk lqfuf'pr djkbZ tk jgh gSA bl O;oLFkk ds vUrxZr ,d ^,dy vkosnu&i= ¼iqfLrdk½ rS;kj dh x;h gS] ftlesa lHkh lEcfU/kr foHkkxksa ds vkosnu&i=kksa dks lekfgr fd;k x;k gSA iPphl :i;s ek=k uxn Hkqxrku djds ;g iqfLrdk ftyk m|ksx dsUæ ls izkIr dh tk ldrh gSA bl O;oLFkk ds vUrxZr izR;sd ekg es ,d ckj lEcfU/kr m|fe;ksa dks ftyk m|ksx dsUæ esa cqyk;k tkrk gS] mudh lgk;rk ds fy, lEcfU/kr foHkkx ds vf/kdkfj;ksa dh enn ls okafNr vkosnu&i=k Hkjok fy;s tkrs gSa] blds mijkUr nks lIrkg ckn lHkh okafNr LohÑfr;k¡ ogha ls fu/kkZfjr frfFk esa tek dj nh tkrh gSA ftlls m|eh dks fofHkUu LFkkuksa ij tkus ds ctk, ,d gh LFkku ij lHkh vuqefr fey tkrh gSA bl O;oLFkk dk ykHk :i;s 25.00 djksM+ rd fuos'k djus okys m|eh mBk ldrs gaSA

'kklu }kjk ;g vuqHko fd;k x;k fd u;s m|fe;ksa dks fo'ks"k :i ls y?kq m|fe;ksa dks fofHkUu Lrjksa ij vuqefr;k¡@LohÑfr;k¡ izkIr djus esa cgqr le; yxrk gS] u, m|eh m|ksx yxkus esa grksRlkfgr gksrsa gS] vr% bl lfefr dk xBu fd;k x;kA mDr lfefr dk v/;{k ftykf/kdkjh gksrk gSA

Page 11: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

9

Hkkjrh; y?kq m|ksx fodkl cSad Hkkjrh; y?kq m|ksx fodkl cSad dh LFkkiuk o"kZ 1990 esa y?kq m|ksxksa ds izorZu] foÙkiks"k.k ,oa fodkl rFkk bu xfrfof/k;ksa esa layXu laLFkkvksa ds dk;ks± dks lefUor djus ds mís'; ls izeq[k foÙkh; ,aLFkk ds :i esa dh xbZ gSA y?kq m|ksx fodkl cSad }kjk ns'k Hkj esa LFkkfir okf.kT; cSadksa] xzkeh.k] cSadksa] jkT; foÙkh; fuxeksa] jkt; vkS|ksfxd fodkl fuxeksa] jkT; vkS|ksfxd fuos'k fuxeksa] lgdkjh cSad dsd ek/;e ls iqufoZÙk ds :i esa foÙkh; lgk;rk miyC/k djk;h tkrh gSA y?kq m|ksx fodkl cSad fuEu ;kstukvksa ds vUrxZr iqufoZr lgk;rk nh tkrh gS%& 1. y?kq ,ao xzkeh.k m|ksxksa dks vkS|ksfxd _.k miyC/k djus grq iqufoZr ;kstuk %&

¼v½ dEiksftV _.k% ¼lfEeJ _.k½ f'kYih] xzkeh.k ,oa dqVhj m|ksx y?kq m|ksx bdkbZ] budks ;a=kksa] dk;Z'khy iawth rFkk dk;Z gsrq :i;s 2,00,000 rd dk _.k myC/k djk;k tkrk gSA blesa izorZd va'knku 'kwU; gSA

¼c½ vuqlwfpr tkfr @ tutkfr ,oa fodykax gsrq ;kstuk vuqlwfpr tkfr@vuqlwfpr tutkfr ,oa fodykaxksa gsrq bl ;kstuk dsk ykxw fd;k x;k gS bl ;kstuk esa dk;Z'khy iwath ,oa e'khu ;a=ksa gsrq vf/kdre :i;s 50000 dk _.k fn;k tkrk gSA blesa izorZd va'knku 'kwU; gSA 2. fo'ks"k ;sktuk %& leLr y?kq m|ksxksa gsrq bl ;kstuk dks ykxw fd;k x;k gS bl ;kstuk ds vUrxZr fuEu enksa gsrq _.k izkIr fd;k tk ldrk gS %& ¼v½ xq.koÙkk fu;a=kd lqfo/kk,¡ & vko';drkuqlkj

¼c½ tujsVj lsV & &rnSo& ¼l½ iznw"k.k fu;a=k.k midj.k & &rnSo&

¼n½ dEI;wVj gsrq & vf/kdre :- 5.00 yk[k ¼;½ Lons'kh@vk;kr izfrLFkkiuk & &rnSo&

¼j½ oSdfYid ÅtkZ@ÅtkZ cpr dh LFkkiuk rFkk fuekZ.k gsrq vko';drk vuqlkj 3. y?kq lM+d ifjogu ifjpkydksa dh lgk;rk %& lkoZtfud okgu ;k lafonk okgu ds :i esa iathÑr u;s okgu [kjhnus ds fy, x;s lkof/k _.k iqufoÙk lgk;rk ds ik=k gksaxsA bl ;kstuk ds vUrxZr izfr ifjpkyd ekStwnk okguksa lfgr vf/kdre 20 okguksa ds fy, _.k miyC/k djk;s tkrs gSaA _.k dh lhek vko';drkuqlkj fu/kkZfjr gksrh gSA 4. midj.k iqufoZÙk ;kstuk %& bdkbZ fiNys pkj o"kks± ls dk;Zjr gks] rFkk 3 o"kks± ls cSad _.k ds Hkqxrku esas dksbZ fcyEc u fd;k gksA bl ;kstuk ds vUrxZr vidj.k@u;s ;a=kksa ds foLrkj bR;kfn gsrq _.k fn;k tkrk gSA mä ;kstuk foÙkh; fuxe@,l-vkbZ-Mh-lh- ds ek/;e ls iz;ksx esa yk;h tkrh gSA _.k dh lhek vko';drkuqlkj fu/kkZfjr dh trh gSA 5. is'ksoj oxZ gsrq ;kstuk %& ;g ;kstuk MkDVj]= bathfu;j] vkfdZVsDV] ,dkmaVslh] eSustesUV] f'k{kk izkIr oxZ gsrq gksrh gSA izFke ckj viuh f'k{kk ij vk/kkfjr bdkbZ@ijke'kZ laLFkk [kksyus ij :i;s 20.000 yk[k rd _.k fn;k tkrk gSSA blls Hkwfe ,oa Hkou dh dwy ykxr dqy ifjO;; ds 50: ls vf/kd u gksA 6. foi.ku dk;Z gsrq ;kstuk %&

¼v½ foi.ku laxBu gsrq %& O;fäxr@lk>snkjh@izkbosV@ifCyd fyfeVsM laxBu dks tks foi.ku {ks=k esa vuqHko izkIr gks] rFkk xzkeh.k ,oa y?kq m|ksx ds mRikn ds foi.ku gsrq :i;s vf/kdre 25.00 yk[k rd _.k izkIr dj ldrs gSaA ¼c½ fcØh ds fy, okgu gsrq %& bl ;kstuk ds vUrxZr leLr [kknh ,oa xzkeks|ksx vk;ksx }kjk leFkZu izkIr izLrkoksa ij gh fopkj fd;k tk;sxkA bldk mís'; u;s okgu ds Ø; gsrq _.k miyC/k djuk gSA _.k dh vf/kdre lhek :i;s 3.00 yk[k gSA

Page 12: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

10

7. fpfdRlk O;olk; gsrq ;kstuk %& ¼v½ vLirky@ufl±x gkse %& ;g ;kstuk mu m|fe;ksa gsrq gSa tks vLirky@ufl±x gkse [kksyuk pkgrs gSaA blds fy, de ls de 10 'kS;k ,oa vf/kdre 50 'kS;k okys vLirkyksa@ufl±x gkse ds fy, vko';drk vk/kkfjr _.k fn;k tkrk gS ftlesa ,d LukrdksÙkj MkDVj vo'; lEc) gksuk pkfg,A ¼c½ bySDVªksesfMdyh ,ao vU; midj.k gsrq ;kstuk %& fpfdRlk f'k{kk izkIr MkDVj tks bySDVªksesfMdy e'[email protected] dks LFkkfir djuk pkgrs gSa mudks vf/kdre :i;s 60.00 yk[k ykxr rd ds midj.kksa gsrq _.k iznku fd;k tk;sxkA 8. i;ZVu vk/kkfjr ;kstuk,¡ %& m|eh tks lkaLÑfrd euksjatd ikdZ] jsLVksjsUV] i;ZVu lsokvksa ds uohuhdj.k@foLrkj bR;kfn djuk pkgrs gSa rFkk i;ZVu fodkl laLFkk ls vuqeksnu izkIr gks] vko';drkuqlkj _.k gsrq vkosnu dj ldrs gSaA 9. bfDoVh vk/kkfjr lgk;rk ;kstuk %& ¼v½ lhM dSihVy ;kstuk %& y?kq@y?kqÙkj v|fe;ksa gsrq tks izorZd va'k yxkus dh fLFkfr esa ugha gksrs] mudks 10% ifj;kstuk dh ykxr vFkok vf/kdre 15.00 yk[k :i;s 1% dh nj ls C;kt ik¡p o"kks± rd] rRi'pkr 10% dh nj ls C;kt yxsxkA ¼c½ jk"Vªh; bfDoVh QaM ;kstuk %& y?kq@y?kqÙkj bdkbZ tks ubZ LFkkfir vFkok iquZjhf{kr ¼fjgsfcysVsM½ gS rFkk egkuxjh; {ks=kksa ls fdlh {ks=k ea LFkkfir gks] mijksä bdkbZ ds bfDoVh xSi dks iwjk djus ds fy, ifj;kstuk ykxr vf/kdre :i;s 10.00 yk[k gksuh pkfg,A lgk;rk dh jkf'k ifj;kstuk dh ykxr dk 25% ftl ij ek=k lsok izHkkj 1% gksxhA 10. efgykvksa gsrq ;kstuk,¡ %& ¼v½ efgyk m|e fuf/k ;kstuk %& ;g ;kstuk efgyk m|fe;ksa gsrq tks bfDoVh ds va'k dks yxkus esa vleFkZ gSA ;fn ifj;kstuk dh ykxr vf/kdre 10% yk[k :i;s gks] rks efgyk m|eh 2.5 yk[k :i;s rd izkIr gksaxs C;kt dh nj 1% ckf"kZd gksxhA ¼c½ efgyk m|eh gsrq ;kstuk %& ;s ;kstuk efgyk m|fe;ksa gsrq gSa tks y?kq m|ksx LFkkfir djuk pkgrh gSaA bl ;kstuk ds vUrxZr izf'k{k.k ,oa foLrkj gsrq lgk;rk miyC/k gksrh gSA 11. lsesQSDl ¼HkwriwoZ lSfud gsrq½ fo'ks"k ;sktuk %& ;g ;kstuk HkwriwoZ lSfudksa vFkok lSfudksa dh fo/kokvksa gsrq gSaA bldk mís'; y?kq bdkbZ@lsok;sa@ifjoguksa gsrq ftudh vf/kdre ifj;kstuk ykxr :i; 15.00 yk[k gks] dk vf/kdre :- 2.25 yk[k _.k myC/k djkuk gSA bl _.k ij ek=kk 1% C;kt eksjVksfj;e rd ,oa blds i'pkr 6% C;kt dh nj ykxw gksrh gSA 12. ,dy óksr ;kstuk %&

u;h vfr y?kq o y?kq bdkb;ka ftudh ifj;kstuk ifjO;; 100 yk[k :i;s ls vf/kd ugha gS vkSj lkekU; Lrj ij ifjpkyu ds fy, ftudh dk;Z'khy iawth dh vko';drk 10 yk[k :i;s rd gS] bl ;kstuk ds vUrxZr lglk;rk dh ik=kk gSa o'krsZ vpy ifjlaifÙk;ksa ds fy, lkof/k _.k o dk;Z'khy iwath gh laLFkk }kjk eatwj dh xbZ FkhA 13. fcy iquHkqZukbZ ;kstuk&e'khu gsrq %& bl ;kstuk ds vUrxZr e'khu fuekZrk iwfrZdrk@Øsrk tks Lons'kh] e'khuksa dks ysrs gSa] bdkbZ ds foLrkj vk/kqfudhdj.k] izfrLFkkfir djrs gSa] jk"Vªh;Ñr cSad ds ek/;e ls _.k izkIr dj ldrs gSaA bl ;kstuk ds vUrxZr vYikof/k ds fy, y?kq bdkbZ iwfrZdrkZ Hkh ykHk mBk ldrk gSA 14. izR;{k fcy HkqukbZ ;kstuk %& izR;{k ;kstuk ls y?kq bdkbZ@fuekZrk ykHk mBk ldrs gSaA

Page 13: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

11

mÙkj izns'k foÙkh; fuxe

mís'; % vkS|ksfxd fodkl gsrq foÙkh; lgk;rk miyC/krk djkukA dk;Zdyki % jkT; ds lHkh e.My;h ¼jktLo½ eq[;ky;ksa rFkk vU; cksl {ks=kh; dk;kZyk;ksa ds ek/;e ls izns'k ds vkS|ksfxd fodkl dk lrr~ iz;klA foÙkh; lgk;rk dh fofHkUu ;kstuk;sa % y?kq o e/;e Lrjh; vkS|ksfxd bdkbZ;ksa ds fy, :- 3 djksM+ rd pqdrk iwath ¼isM vi dSfiVy½ o eqä lap; ¼Qzh fjtoZ½ okyh dEiuh;ksa dh ifj;kstukvksa dh LFkk;h lEifr;ksa dh ¼vFkkZr~ Hkwfe] ¼LVkEi o jftLVªh [kpZ½ Hkou] e'khujh o la;=k fuekZ.k vof/k ds C;kt rFkk rduhdh ijke'kZ½ ds fy;s :- 90 yk[k rd dh foÙkh; lgk;rk :- 5 djksM+ rd dh ;kstukvksa ds fy, fidi rFkk vuqlwfpr cSadksa ds lkFk feydj lgk;rkA fczftax _.k% ;kstuk ds Rofjr fØ;kUo;u gsrq LohÑr _.k ds fo:) fczftax&yksu dh O;oLFkkA vk/kqfudhdj.k %LFkkfir bdkbZ;ksa dks viuh mRiknu {krek c<+kus] mRiknu ykxr de djus ;k rduhdh vk/kqfudhdj.k gsrq foÙkh; lgk;rkA midj.k iqufoZÙk lgk;rk % 4 o"kZ ls vf/kd le; ls dk;Z dj jgh o 2 o"kZ ls ykHk vftZr dj jgh bdkbZ;ksa dks vk/kqfudhdj.k@foLrkj@iqjkuh e'khuksa ds LFkku ij Lons'kh@vk;frr e'khuksa ds fy;s Rofjr foÙkh; lgk;rkA i;ZVu m|ksx % gksVy] eksVsy] jsLVksjsUV] Vsªosy ,tsUlh] euksjatu ikdZ vkfn ds fy;s foÙkh; lgk;rkA ufl±x gkse tk¡p midj.k %NksVs vLirky@ufl±x gkse dh LFkkiuk rFkk@vFkok fpfdRlky; tk¡p o mipkj ds fy;s fo|qr midj.kksa dh [kjhn ds fy;s foÙkh; lgk;rkA NksVs m|fe;ksa ds fy;s ,dy fcUnq ;kstuk % 50 yk[k rd dh ;kstuk ykxr okyh NksVh bdkb;ksa ds fy;s LFkkbZ lEifÙk;ksa ds lkFk ds fy;s lkof/k _.kA xzkeh.k@dqVhj bdkb;ksa ds fy;s dEiksftV _.k ;kstuk % dk;Z'khuy iwath lfgr :- 50 :- gtkj rd ;kstuk ykxr okyh xzkeh.k dqVhj o y?kqÙkj bdkbZ;ksa dks LFkk;h lEifÙk o dk;Z'khy iwath lgk;rkA HkwriwoZ lSfud@efgyk m|fe;ksa % fo'ks"k izksRlkgu ds :i esa lkof/k _.k ds lkFk&lkFk cht iawth lgk;rkA O;olkf;d % MkDVj] bathfu;j] pkVsZM ,dkmUVsUV] vkdhZVsDV] dkLV ,dkmUVsUV vkfn dks foÙkh; lgk;rkA y?kq m|ksxksa ds mRiknu dk foi.u % xzkeh.k] dqVhj] y?kqÙkj ,oa vkS|ksfxd bdkbZ;ksa dh fcØh ds fy;s u;s 'kks&:ie@fcØh dsUæksa dh LFkkiuk rFkk LFkfir 'kks&:e@fcØh dsUæksa ds foLrkj@vk/kqfudhdj.k ds fy;s lgk;rkA eps±UV cSfdax o vU; lsok;sa % izkstSDV ewY;kadu] gk;j&ijpst o yhftax ds :i esa lgk;rkA

Page 14: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

12

mÙkj izns'k jkT; vkS|ksfxd fodkl fuxe

mís';

lqfu;ksftr ,oa Rofjr vkS|ksfxd fodklA

dk;Zdyki

vkS|ksfxd {ks=kksa dk fodkl] va'kiw th Hkkxhnkjh] va'kd vfHkxksiu ,oa la;qä@lgk;frr

{ks=kksa esa m|ksxksa dk izoZruA lLrh njksa ,oa vklku fd'rksa ij Hkw[k.M viyC/k djkukA m|ksxksa

dh vfu;fer LFkkiuk esa deh ykus rFkk fiNM+s tuinksa esa vf/kdkf/kd iwath fuos'k dks izksRlkgu

dj vkS|ksfxd {ks=kksa dh LFkkiuk ,oa vU; ljdkjh foHkkxksa rFkk miØeksa ds fy, fuekZ.k dk;ZA

la;qä@lgk;frr {ks=kksa esa LFkkfir dh tkus okyh ifj;kstuk;s%

larqfyr vkS|ksfxd fodkl ds mís'; ls fofHkUu m|fe;ksa] vkS|ksfxd lewgksa dh lgk;rk ls

e/;e ls o`gn v|ksxksa dh LFkkiuk dks izksRlkguA ifj;kstukvksa dh rduhdh@foÙkh; vko';drkvksa

ds vuq:i ;Fkk&lEHko fiNM+s {ks=kksa esa LFkkfir djus dk iz;RuA

va'kiwath Hkkxhnkjh ;kstuk %

fu/kkZfjr va'kiwath dk fuos'k u dj ldus dh n'kk esa izoZrdksa dks fu/kkZfjr v'kaiwath o

mlds }kjk fd;s x;s fuos'k ds vUrj ds vk?kkj ij va'kiw th lgk;rkA fiNM+s tuinksa]

fu;kZrksUeq[k@vk;kr izfriwjd m|ksxksa o vizoklh Hkkjrh;ksa dks ojh;rkA

Hkw[k.M vkoaVu@ava'k vfHkxksiu i=k %

izns'k esa yx jgh lkoZtfud dEiuh dks iwath cktkj ls va'k iawth tqVkus gsrq va'k

vfHkxksiu }kjk vkfFkZd lgk;rkA lgk;rk jkf'k lkekU;r% fuxZfer iawth ds 15% rd fuxe }kjk

fodflr vkS|ksfxd {ks=kksa esa Hkw[k.M vkoaVu ds bPNqd m|eh fu/kkZfjr vkosnu i=k ij izLrkfor

ifj;kstuk ds laf{kIr fooj.k] Hkwfe mi;ksx] izLrkfor ekufp=k ,oa ck¡fNr /kujkf'k rhoz ,oa eUn

xfr vkS|ksfxd {ks=kksa ds fy;s Øe'k% :- 550 o :- 1000 izfr ,dM+ ¼:- 100 vkosnu 'kqYd ds

lkFk½ vkosnu dj ldus dh lqfo/kkA fuxe ds rhozxkeh ,oa eUn xfr vkS|ksfxd {ks=k esa Hkw[k.M ds

dqy ewY; dh Øe'k% 25% o 10% /kujkf'k vkoaVu dh frfFk ls 30 fnu esa ns;A fdlh foÙkh; laLFkk

ls vkfFkZd lgk;rk izkIr u djus dh n'kk esa Hkw[k.M dks vo'ks"k /kujkf'k dk Hkqxrku vkoaVu ds

ckn 10 Nekgh fd'rksa esa 20% C;kt lfgr esa rhoz o eUn xfr vkS|ksfxd {ks=kksa eas Øe'k% 2% o 4%

dh NwVA

Page 15: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

13

jk"Vªh; Ñf"k vkSj xzkeh.k fodkl cSad

ukokMZ dh LFkkiuk ,d 'kh"kZd xzkeh.k fodkl cSad esa fjtoZ cSad }kjk dh x;hA jk"Vªh; cSad okf.kT; cSadks]

Hkwfe fodkl cSadksa }kjk fofHkUu ifj;kstukvkas ds fy, iquZfor ;kstuk vUrxZr] vYikof/k e/;kof/k o nk?kkZof/k _.kksa

dh lgk;rk iznku dh tkrh gSA jk"Vªh; cSad }kjk vuqlU/kku o fodkl ds {ks=k esa ,oa fofHkUu izdkj ds izf'k[k.k

dk;ZØeksa gsrq Hkh lgk;rk miyC/k djkrk gSA

jk"Vªh; cSad dh nk?kkZof/k _.k ¼;kstukc)½

¼d½ ik=k laLFkk;sa

¼1½ vuqlwfpr okf.kT; cSadA

¼2½ {ks=kh; okf.kT; cSadA

¼3½ ftyk e/;orhZ lgdkjh cSadA

¼4½ ftyk e/;orhZ Hkwfe fodkl cSadA

¼[k½ vof/k &

¼1½ 3 o"kZ ls de u gksA

¼2½ 25 o"kZ ls vf/kd u gksA

¼x½ ik=k dk;Zdyki

Ñf"k vkSj xzkeh.k dk;Zdyki tSls& y?kq flapkbZ] Hkwfe fodkl] catj Hkwfe fodkl] ckxokuh] js'ke mRiknu]

i'kq ikyu] eRL; ikyu] lesfdr xzkeh.k fodkl ifj;kstuk] Ñf"k e'khuhdj.k] Hk.Mkj.k foi.ku ekMZ] ok;ks rduhdh

ifj;kstuk bR;kfnA

M~okdjk ;kstuk ¼xzkeh.k {ks=kksa esa efgykvksa ,oa cPpksa ds fodkl ds fy, Hkkjr ljdkj dh ;kstuk&

;g ;kstuk xk¡o dh efgykvksa o cPpksa ds fy, gSaA fo'ks"k dj xzkeh.k {ks=k esa xjhch js[kk ls uhps jgus okys

xzkeh.k ifjokjksa dh efgyk lnL;ksa dks vk; izkfIr rFkk Lojkstxkj ds volj iznku djus ds mís'; ls rS;kj dh

x;h gSA

Ñf"k;sÙkj {ks=k

xzkeh.k {ks=kksa esa dqVhj] y?kq m|ksxksa gLrf'kYiksa rFkk vU; xzkeh.k f'kYiksa dks c<+kok nsus ds fy, iznku fd;s

x;s _.kksa ij jk"Vªh; cSad l siqufoZr ysus dh ik=krk gSA m|ksxksa dks 22 eq[; lewgksa esa oxhZÑr fd;k x;k gS]

fodkl vk;qÙk ¼y?kq m|ksx½ Hkkjr ljdkj }kjk vuqeksfnr dksbZ Hkh m|ksx lgk;rk izkIr djus dk ik=k gSA

eq[; fo'k"krk,¡ &

(1) vkVkseksfVd iqufoZr lqfo/kk & (i) lafeJ vksj lesfdr _.k ds fy, lkekU; iquZfo±rA (ii) lskyj dqdj] ok;ksxSl la;=k] ifjpkydksa }kjk NksVs okgu dh [kjhn] odZ'kSM] dPps eky ds dsUæ] 'kks :e] xksnke forj.k okgu

bR;kfn dh lqfo/kk;saA (iii) ifj;kstuk rSlkj djkuk ,oa ijke'kZ lsok,a

(2) xSj vkVkseSfVd iuqfoZr lqfo/kk & js'ke m|ksx gFkdj?kk] y?kq m|ksx bdkb;ksa] iathÑr] leL;kvka] lgdkjh

lfefr;ksa gsrq lkof/k _.kA

(3) vU; ;kstukvksa & (1) m|fe;ksa dks ekftZu euh gsrq O;kt Hkqxrku _.k] iwoZ lSfudksa] fo/kokvksa] fodyk¡x iwoZ lSfud vkfn ds fy, lSEQSDl&II ;kstukA

mä leLr ;kstukvksa ds fy, xzkeh.k f'kYidkj] gLrf'kYi] NksVs m|eh] lfefr;ksa] laLFkkvksa bR;kfn mi;qä

ek=k gks ldrs gSaA

(4) iquZfoÙk dh lhek & (i) lfeJ _.k & :i;s 50.000 (ii) lesfdr _.k& 10 yk[k] vkVkesfVd iquZfoÙk lqfo/kk ds vUrxZrA

(5) ekftZu euh & :i;s 50 gtkj rd ds fe{k _.k ds fy, ekftZu euh jkf'k vko';d ugha& :i;s 1 yk[k

rd ds _.kksa ds fy, 5 % & :i;s 1 yk[k ls vij ds _.kksa ds fy, 10%

(6) vnk;xh vof/k & 3 ls 10 o"kZ

Page 16: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

14

(7) C;kt dh nj& (1.0394 ls izHkkfor½ :i;s 25 gtkj dh jkf'k rd & 12% :i;s 25 gtkj ls Åij &

14% :i;s 2 yk[k ls Åij & 15%

izkFkfed cqudj lfefr;ksa ds mRiknu vkSj foi.ku dk;Zdyki&

izkFkfed cqudj lfefr;ksa dh mRiknu vkSj foi.ku xfrfof/k;ksa ds fy, foÙkh; lgk;rk miyC/k djkus gsrq

ftyk e/;orhZ vkS|ksfxd lgdkjh cSadksa ds fy, jkT; lgdkjh cSadksa jk"Vªh; cSad ls vYiof/k _.k lhek miyC/k gSA

cqudjksa }jk odZ'ksM ds fuekZ.k] dj?kksa ds vtqZu vkfn ds fy, lkof/k _.k dh lgk;rk iznku dh tkrh gSA us'kuy

VsDlVkby dkiksZjs'ku ds ,sls deZpkjh] ftUgksaus ikojywe dk;Zdykiksa dks viukus ds fy, LosPNk ls lsokfuo`Ùk gksus

dh bPNk tfgj dh gS% muds iquZokl ds fy, Hkh iqufoZr lqfo/kk iznku dh tkrh gSA

efgykvksas ds Lo;a lgk;rk lewg vkSj jk"Vªh; cSad dh izk;ksfxd ifj;kstuk

xzkeh.k {ks=kksa esa ferO;f;rk vkSj opr dks izksRlkfgr djus rFkk cSafdax iz.kkyh ds ek/;e ls mudh _.k

vko';drkvkas dks iwjk djus ds mís'; ls o"kZ 1992 esa Lo;a lgk;rk lewgksa dks cSadksa ds lkFk lgc) djus dh

izk;ksfxd ifj;kstuk izkjEHk dh xbZ Fkh] blesa eq[; ckrsa fuEu gSaA

(i) Lo;a lgk;rk lewg tks de ls de fiNys 6 efguksa ls lfØ; :i ls dk;Zjr gS rFkk vius lnL;ksa

dks _.k nsus rFkk mudh cprksa dks izksRlkfgr djus dk dk;Z djrs gSA

(ii) Lo;a lgk;rk lewg vkSipkfjd vFkok vuksipkfjd lewg gks ldrs gSaA lewg ds lnL;ksa dh la[kk

10 ls 20 gks ldrh gSSA

(iii) lewg }kjk laxzfgr cprksa ds vuqikr ds vuqlkj cSad mUgsa foÙkiks"k.k iznku djsaxsA _.k vkSj

cprksa dks vuqikr cSad ds ewY;kadu ds vk/kkj ij 1:4 ls 1:4 ds chp gks ldrk gSA (iv) Lo;a lgk;rk lewg dks _.k lgk;rk esa C;kt dh 12% r; dh x;h gSA

xzkeh.k ekbØks vksj ?kjsyw m|eksa dh lgk;rk iznku djus ds fy, xSj ljdkjh laxBuksa dks c<+h ek=kk esa _.k

;kstuk dh eq[; ckrsa %&

(1) ,slh okyafV;j ,tsafl;ksa@xSj ljdkjh laxBuksa dks _.k miyC/k djok;k tkrk gS tks xzeh.k xjhcksa dks

oS;fäd :i ls vFkok NksVs lewgksa dh ekiZr _.k lgk;rk iznku djrs gSa vkSj muesa feO;f;rk dks izksRlkfgr djrs

gSaA

(2) ,tsUlh vius _.k dk;ZØe gsrq 1ls 3 o"kksZ dh vof/k ds fy, viuk dk;ZØe ¼izkstsD'kUl½ rS;kj djsxhA

(3) ,tsUlh dk fgLlk blesa 25% jgsxkA

(4) cSad ls LoSfPNd laxBuksa dks 9% dh C;kt nj ij _.k miyC/k gksxkA

(5) vfUre _.k drkZ dks O;SfädA lewg _.k nsus ds fy, foÙk dk vkadyu] ewY;kadu] izfrHkwfr vko';drk;saA

C;kt dh nj] pqukSrh vof/k vkSj vU; 'krsaZ] cSadksa ls dkQh ek=kk esa _.k ysus okyh LoSfPNd laxBuksa }kjk fu/kkZfjr

dh tk;sxhA

(6) vfuok;Z 'krZ ;g gS fd _.kdrkZ us viuh {kerk ds vuqlkj fu;fer :i ls nSfud lkIrkfgd vFkok ekfld

vk/kkj ij dqN jkf'k tek dh gksA bl rjg dh opr dh jkf'k LoSfPNd laxBu ;k xSj ljdkjh laxBu }kjk

,dfyr dh xbZ gS vkSj izR;sd lnL; ds fy,s vyx&vyx O;Sfäd [kkrs [kksys x, gSsA

Page 17: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

15

mRikn p;u ,oa volj vfHkKku

vki Lo;a ;g lksfp, fd vki dkSu lk m|ksx yxkuk pkgrs gSaA lkcqu cukuk pkgsaxs ;k nok;sa cukuk\

vPNk! vc vki ;g lksfp, fd m|ksx pykus ds fy, fdu&fdu phtksa dh t:jr gksxh tSls lkcqu ds m|ksx ds

fy, FkksM+h lh txg dqN IykfLVd ds iSdsV] lksfM;e flfydsV] ,UghMªl lksi ikmMj] lksfM;e DyksjkbM] VsVªk

lksfM;e] ik;jk QkLQsV] vkIVhdy Cyhp vkfn dh t:jr gksxhA

;fn vkius m|ksx dk pquko lgh <+ax ls ugha fd;k gS rks vki lnSo vleatl dh fLFkfr esa jgsaxsA blfy,

cgqr gh lksp le>dj dne mBkuk pkfg, D;ksafd vxj blesa dksbZ Hkwy gks x;h rks u dsoy vkidk /ku o le;

cckZn gksxk] cfYd ckn esa bldk izHkko vkids vkRefo'okl o Hkfo"; ij Hkh iM+sxk ,oa dq.Bk mRiUu gksxhA vr%

lksp fopkj dj gh dksbZ dne mBkuk pkfg,A blds fy, fuEu ckrksa dks /;ku esa j[kuk pkfg,A

1. viuh {kerk

vkidks m|ksx pquus ls igys ;g ns[kuk pkfg, fd vkiesa fdl izdkj ds dk;Z djus dh {kerk gS tSls fd

vkiesa rqjUr lgh fu.kZ; ysus dh {kerk gS\ fdl {ks=k esa vki vf/kd dk;Z dj ldrs gSa ,oa fdu {ks=kksa esa vki

vius dks detksj le>rs gSa \ vki t;knk nkSM+&/kwi dj ik;saxs fd ugha \ vkiesa lgu'khyrk gS\ vki gkj dks

lgu dj nksckjk dke mlh yxu ls dj ik;saxs\ vkidh lsgr bl dke ds fy, vuqdwy gS\ bR;kfn igyqvksa ij

Hkyh&Hkk¡fr ls fopkj djuk gksxkA

2. /kS;Z

dgha ,slk rks ugha fd vki fdlh ijs'kkuh esa ,dne ?kcjk tkrs gksa\ vkidks /khjt j[kuk pkfg,A

dHkh&dHkh ,slk gksrk gS fd dksbZ ,slh leL;k vk {kM+h gksrh gS ftl ij igys lkspk gh ugha x;k gksrkA ,sls le;

esa vkidks /kS;Z ls dke djuk vkuk pkfg,A vDlj vkidk dke vkidh vk'kkvksa ds foijhr Hkh gks ldrk gSA ;k

fdlh dk;kZy; esa ckj&ckj iz;Ru djds Hkh vkidk dke ugha gks jgk gS ,slh fLFkfr esa vkidks xqLls ls dke ugh

ysuk gSA cfYd /kS;Z ls vius bjkns dks iDdk djrs gq, fLFkfr dks le>uk gS vkSj ifjfLFkfr;ksa dk lkeuk djuk gSA

3. lkgl

m|e yxkus ds fy, lkglh gksuk Hkh t:jh gSA fcuk lkgl ds dksbZ dne ugha mBk;k tk ldrkA vkids

eu esa ;g loky mBsxk fd eSa dSls tkuw fd eSa fdruk lkglh gwwaA blds fy, vkReniZ.k fl)kUr ds vuqlkj vkidks

vksj yksxksa ls vius okjs esa jk; ysuh gksxh fd yksx vkids ckjs esa D;k lksprs gSa\ vki [kqn gh lksfp, fd vki Lo;a

dks r4st] prqj] /kS;Zoku ;k dqN vkSj le>rs gSaA vkils yksx dSlk O;ogkj djrs gS\ D;k vki fdlh Hkh dfBukbZ

dks ljyrk ls lqy>krs gSa\ fdlh nwljs dh ftEesnkjh dks Hkh ysrs gSa vkSj mls iwjk djokrs gSsaA

4. viuh ifjokfjd ifjfLFkfr

m|e LFkkfir djus ds fy, vkidks viuk djhc&djhc lkjk le; mlh vksj yxkuk gksxkA vr% vki vius

ifjokfjd nkf;Ro] [kpksZ ,oa fudV Hkfo"; dh vko';drkvksa dks /;ku esa jf[k,A

5 'kkjhfjd {kerk

m|e pqurs le; vki ;g Hkh nsf[k;s fd vki fdruk dk;Z dj ldrs gSA vki ,d LoLFk uo;qod gSa ;k

vf/kd mez ds fjVk;MZ O;fä gSa\ ;fn vki nwljh Js.kh ds gSa rks Bgfj;s\ vki ,slk m|ksx pqfu, ftlesa vkidks

T;knk esgur u djuh iM+sA

Page 18: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

16

6 ijEijxr O;olk;

D;k vki fdlh O;olk;h ifjokj ls vkrs gSa\ ;fn gka rks vki ds fy, ;gh t;knk Bhd gksxk fd vki vius

ifjokj ds O;olk; dks gh djsa ;k mlls tqM+k gqvk m|e yxk;sa rkfd vkids ifjokj dk o"kkZsa ls pyk vk jgk

vuqHko] ifjp; vkfn vkids dke vk ldsA ,d ckj dk;Z dk vuqHko gks tkus ds ckn vU; fdlh dk;Z dks Hkh

vkjEHk dj ldrs gSA

7 cktkj dh fLFkfr

vki tks m|e pqu jgs gSa mldh [kir ds ckjs esa irk dj yhft,A cktkj esa ;g pht lky Hkj mi;ksxh

gksrh gSA ;k dwqN gh le; mldk mi;ksx gksrk tgS\ mldh [kir lkekU; cktkj esa gksrh gS ;k ef.M;ksa esa\ blds

lkFk gh ;g Hkh ns[kuk gksrk gS fd vU; m|fe;ksa }kjk cukbZ xbZ pht dk D;k Lrj gS\ dgha ,slk rks ugh fd

vmids eky dk Lrj cgqr [kjkc gks\ bl ckjsa esa vkidks cktkj dk Hkjiwj losZ{k.k djuk gksxk vkSj vf/kd ckrsa

tkuus ds fy, cktkj losZ{k.k v/;k; dks i<+saA

8 dPps eky dh miyC/krk

m|e dk pquko djus ls igys vkidks ;g Hkh ns[kuk gksxk fd cktkj esa dPpk eky gS ;k ughaA dgha ,slk

rks ugha fd m|ksx LFkkfir gksus ds dqN fnu ckn cktkj ls dPpk eky xk;c gks tk, vkSj vkidks viuk m|ksx

cUn djuk iM+sA vki ;g Hkh nsf[k, fd dPp-k eky QSDVªh rd ykus esa vkidk fdruk [kpZ gksrk gSA dgha ,slk rks

ugha dqN fnu ckn vkidks dgha cgqr nwj ls dPpk eky ykuk iM+s blesa vkidk /ku rFkk le; vf/kd yxsxkA

9 foÙkh; fLFkfr

vius cSad cSaysal dh fLFkfr Hkh ns[kuh gksxhA bl ckr dks utj vankt djds vkxs c<+uk cgqr cM+h Hkwy

gksxhA ;g lp gS fd vkiudks m|e yxkus ds fy, _.k feyrk gS ij mlds ckn vkids ikl lUrqfyr jkf'k dk

gksuk t:jh gSA blds vykok [kpZ ,oa ?kkVs dh laHkkokuk dk vankt yxkuk gksxkA fdlh ykyp esa viuh {kerk ls

T;knk cM+s m|e dks u yxk ysaA /khjs&/khjs viuh foÙkh; fLFkfr dks lq/kkjrs gq, m|ksx dk foLrkj djsaA m|e p;u

esa dqy ifj;kstuk dh ykxr dk yxHkx 25-30 izfr'kr rd bfDoh@va'knku vo'; gksuk pkfg,A

10 m|ksx LFkkiuk esa fopkj %&

m|ksx LFkkiuk esa O;fä dh tYnckth gkfudkjd gksrh gSA dgha ,slk rks ugha fd vki m|ksx LFkkiuk esa

cgqr tYnh dj jgs gSaA vxj lansg gS rks Bgfj;sA bl dke ds ckjs esa vki ,d ckj fQj Hkyh izdkj ls lksp ysa fd

vki m|ksx lEcfU/kr my>uksa ls dSls fuiVsaxsA

11 e'khu dh miyC/krk %&

m|ksx p;u dh izfØ;k esa ,d egRoiw.kZ igyw e'khu p;u dk Hkh gksrk gS D;ksafd ;fn e'khu Lons'kh gS rks

fu'p; gh mldh ykxr vk;frr e'khu ls de gksxh rFkk Hkfo"; esa fdlh Hkh izdkj dh VwV&QwV gksus ij mldh

ejEer djokus esa vf/kd le; O;; ugna djuk iM+sxk] lkFk gh lkFk ykxr de gksus ls ifj;kstuk dh ykxr Hkh

de gks ldrh gSSA

12 lajpukRed miyC/krk%&

ifj;kstuk p;u esa lajpukRed miyC/krk dk viuk ,d fo'ks"k egRo gksrk gS D;ksafd Hkwfe] fctyh] ikuh]

lM+d] cSad o vU; ewyHkwr lqfo/kk,¡ bdkbZ LFkkiuk LFky ij ekStwn ugha gS rks bdkbZ dks Hkfo"; esa fdlh Hkh izdkj

Page 19: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

17

dh leL;k dk lkeuk djuk iM+ ldrk gS] lkFk gh lkFk ;g lHkh ewyHkwr vko';drkvksa ds miyC/k gksus ij

vko';d Hkkx&nkSM+ ls Hkh m|eh cp ldrk gS rFkk ifj;kstuk dh ykxr Hkh de dh tk ldrh gSA

13 ekuo 'kfä dh miyC/krk mRikn@m|e p;u izfØ;k esa mi;qä ekuo 'kfä ¼dq'ky½ p;u] Hkh ,d egRoiw.kZ izfØ;k gS D;ksafd ;fn

vki p;u djrs gSa phuh feêh ds crZu] ihry] fufdy vFkok 'kh'kk mRikn dk] rks fu'p; gh vkidks dq'ky dkjhxj dk p;u djuk iM+sxkA dq'ky dkjhxj mUgha {ks=kksa esa miyC/k gksaxs] tgk¡ fuekZ.k@mRikn izpqj ek=kk esa

gksrs gSaA vr,c ekuo 'kfä dk p;u] mRikn p;u izfØ;k esa egRoiw.kZ Hkwfedk vnk djrk gSSA m|ksx LFkkfir djuj m|eh ds O;fäRo ls dkQh xgjkbZ ls tqM+k gqvk gSA tc vki viu fy, fdlh m|ksx dk p;u djsa

rks viuh rkdrksa] detksfj;ksa ,oa vius lEeku dks /;ku esa j[krs gq, gh fdlh m|ksx volj dk p;u djsaA vkidks ,sls gh voljksa dk p;u djuk gksxk ftldk rkyesy lh/kk vkids O;fäRo ls gks lds D;ksafd lgh m|ksx dk p;u

u gksus ds dkj.k vkidh iwjh 'kfä xyr fn'[kk dh rjQ yxus dh laHkkouk gSA u;s m|eksa ds fy, mRikn dk p;u djuk bruk ljy ugha gS vkSj mlds eu esa vfUre fu.kZ; ysus ls igys vusd 'kadk;sas mRiUu gksrh jgsxhA

14 ljdkjh uhfr;k¡

mRiknksa m|e p;u izfØ;k ds mijksä fcUnqqvksa ij xagu fopkj ,oa dk;Z djus ds lkFk&lkFk m|eh dks

ljdkjh uhfr;ksa dk Hkh v/;;u djuk gksxk fd p;fur m|ksx izfrcaf/kr lwph esa rks ugha gS D;ksafd ;fn p;fur

m|ksx izfroaf/kr lwwph esa gS rks ml m|ksx@mRiknu dk p;u djuk mi;qä ugha gksxkA izfrcaf/kr lwph dh

tkudkjh ftyk m|ksx dsUæ@cSad@m-iz- foÙkh; fuxe ls miyC/k gks ldrh gSA p;u ds pj.k % vkS|ksfxd volj igpku &

vkidks Lo;a dh dq'kyrk ,oa dk;Zdq'kyrk] vPNkb;ksa ,oa dfe;ksa dks /;ku esa j[krs gq, okrkoj.k esa ekStwn voljksa dks <wz<+us dh dksf'k'k djuk gS vksj vfaUre fu.kZ; ysus ls igys nksuksa dk rqyukRed fo'ys"K.k djds vius

mRiknu dk p;u djuk gSA dkSu lk mRikn yxk;k ik;s blds ckjs esa dqN fopkj vkidks fey ldrs gSa ;fn vki vius {ks=k esa mu u;s mRikn@lsokvksa ds ckjs esa tks fd ml {ks=k esa miyC/krk ugha gS ;k orZeku

mRikn@lqfo/kkvksa esa lq/kkj ykdj ;k fodkl djds u;s mRikn dk vkjEHk fd;k tk ldrk gSA ;fn u;s mRiknu esa dqN Hkh lUnsg yx jgk gks rks tks mRikn ,oa lsok,a yksx igys ls dj jgs gSa mlh esa ;s vius fy,

dksbZ mRikn lk lsok dk p;u djsaA lgk;d m|ksx ds :i esa Hkh vki viuh ifj;kstuk 'kq: dj ldrs gSsaA u;s m|eh ftuds ikl vuqHko dh deh gS muds fy, ;gh Bhd gksxk fd u;h orZeku bdkbZ;ksa esa ls fdlh mRikn dk

p;u djsa ;k mlesa lq/kkj ykdj dksbZ u;k mRikn cukus dh ps"Vk djsaA

cktkj ek¡x

m|ksx dk p;u ,d vR;Ur egRoiiw.kZ ,ao dfBu dk;Z gS bldk fu.kZ; ysus ls igys vkidks&

1 okrkoj.k esa miyC/krk lk/kuksa dh iwjh tkudkjh ysuh pkfg,A ml {ks=k dh tula[;k ogk¡ ds O;olk; ,oa

lkekftd vkSj vkfFkZd n`f"Vdks.k dk iw.kZ vkHkkl gksuk pkfg,A

2 vkidks pkyw O;olk; fLFkfr] vUr{ks=kh; ysu&nsu ,oa LFkkuh; miHkksäk dh vko';drk dh iw.kZ tkudjh

ysuh pkfg, vkSj okrkoj.k dh ek¡x ,oa iwfrZ dk vuqeku gksuk pkfg,A

óskr

vius m|e dk p;u vki miyC/k lk/kuksa ds vk/kkj ij Hkh dj ldrs gSa tSls Ñf"k] [kfut inkFkZ] leqæh lk/ku ,oa lu ls lfEcfU/kr lk/ku ,oa vof'k"V inkFkZ ij vk/kkfjr mRiknA c<+rh gqbZ vkoknh ,oa miHkksäk vkSj

vkSj vkS|ksfxd mRiknksa] lsokvksa esa c<+rh ek¡x ds vk/kkj ij Hkh vius m|ksx dk p;u dj ldrs gSaA mijksä lk/kuksa dks /;ku esa j[krs gq, vki vius m|ksx dk leqnk; r; dj ldrs gSaA tSls& baftfu;fjax] jlk;u] IykfLVd

bR;kfnA

Page 20: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

18

izcU/k

vkids m|e dh iw.kZ :ijs[kk cu pqdh gSA vc vkidks ;g tkuuk gS fd vki viuk m|e dSls pyk,a o vkus okyh fnDdrksa dk lkeuk dSls djsaA leqfpr <ax ls m|e pykus ds fy, t:jh gS fd vki vPNk izcU/k djsaA

izcU/k D;k gS\ vPNs izcU/k ds pkj eq[; vax gksrs gSaA 1 ;kstuk

2 laxBu 3 usr`Ro

4 lapkyu dqN ladsrksa dks ns[kdj vkidks ekywe py tk;sxk fd vkids m|e ds izcU/k esa xM+cM+h gS ;k ughaA

1 tc fcuk fdlh ;kstuk ds dke gks jgk gksA 2 tc vki ns[ksa fd vkids deZpkjh [kq'k ugha gS ;k dke ugha djuk pkgrsA

3 tc vkids m|e esa y{; vkSj dk;Z djus dk rjhdk fuf'pr u gks 4 tc vki vius Åij lkjk dke ys ysrs gksaA

5 tc vf/kdrj fnDdrsa gh lkeus vkrh gksaA vxj Åij fy[kh ckrksa esa fdlh Hkh nks ls vkidk ekuk iM+rk gSA rks bdk eryc gS fd vkids m|e dk

izcU/k Bhd ugha gSA ysfdu D;k vki tkurs gSa fd izcU/k D;k gksrk gS\ ,d m|ksx ds flyflys esa izcU/k dbZ rjg ds gksrs gSsaa tSls fd deZpkjh izcU/k ¼ilZuy eSustesUV½] mRiknu izcU/k ¼izksMD'ku eSustesUV½] iwath izcU/k ¼dSihVy

eSustesUV½ l;e izcU/k ¼Vkbe eSustesUV½] lEidZ izcU/k ¼dE;qfuds'ku eSustesUV½ vkfnA foÙkh; izcU/k

foÙk] mRiknu ,oa fcØh izR;sd m|ksx ds vk/kkj LeEHk gSA buesa igys vki';drk iM+rh gS foÙk izcU/k ls rkRi;Z

ek=k /ku ,df=kr djuk gh ugha gS] vfirq mldk mi;ksx ,oa forj.k dq'kyrk ls djuk gSA for izcU/k dks Li"V djus ds fy, foÙkh; dk;ksZ dk vkoaVu fuEu izdkj ls fd;k tk ldrk gS%%&

foÙk izcU/k

m|ksx dh LFkkiuk ds fy, vkidks fdlh ,d óksr ls lkjh jkf'k ugha izkIr gks ldrhA fofHkUu óksrksa ls bldk izcU/k vf/kd vklku vksj ykHkizn gksrk gSA vkxs nh x;h lfj.kh }kjk ;g óksr Li"V gksrs gSaA

,d vPNs izcU/kd ds fy, vki';d gS fd mls foÙkh; lgk;rk djus okys lHkh óksrksa dk mfpr Kku gksA Åij nh xbZ lkfj.kh esa ,sls vusd óksr fn;s x;s gSa] tks vkids m|ksx dks vkfFkZd lgk;rk iznku djrs gSaA ijUrq

;g Hkh fofo/krk fy, gq, gksrs gSaA ;kfu dksbZ óksr fdlh fo'ks"k izdkj dh vko';drk ds fy, gh ykHkizn gksrs gSa tSls& yEch vof/k okys _.k] m|ksx dh LFkk;h iwath ds fy, iz;ksx fd;s tkus ij vf/kd ykHkizn gksrs gSaA tcfd

dk;Z'khy iwath ds fy, vYi vof/k ds _.k vf/kd mi;ksxh gksrs gSa vkidh tkudkjh ds fy, ;gk¡] un lHkh ds xq.k] nks"k ,oa miyC/krk dh tkudjh nh tk jgh gSA

fuos'k %

;gk¡ fuos'k ls rkRi;Z ml iwath ls gS tks vki vius ikl ls yxkrs gSaA ;g fuosf'kr iwath lerk jkf'k (Equity)ds :i esa iz;qä gksrh gSA vU; óksrksa ls _.k izkIr djus ds fy, dqN jkf'k vkids ikl myC/k gksuk vko';d gksrk gS] ml jkf'k dk izcU/k fuEu óksrksa ls fd;k tk ldrk gSA

1. O;fäxr tSlk fd uke ls gh Li"V gS fd ;g óksr vki gh gSaA ;kfu vkidks futh lEifÙk ftlesa vkidh vHkh rd

cpkbZ xbZ jkf'k 'kkfey gSA m|ksx vkjEHk djus ds fy, ;g iwath cgqr vko';d ,oa egRoiw.kZ gksrh gS D;ksafd blh dh miyC/krk ij vkidks vU; _.k feyrs gSaA m|ksx dk dk;Z vkjEHk gks tkus ij mlls feyus okyk ykHk Hkh

vkidk O;fäxr foÙk óksr gks tkrk gSA

Page 21: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

19

2. 'ks;j

lerk jkf'k izkIr djus dk ,d ókr gS 'ks;j cspukA ijUrq 'ks;j cspus dk vf/kdkj izR;sd dEiuh dks ugha gksrkA blds fy, ljdkjh vuqefr ysuk t:jh gSA O;fä ftrus ewY; dk 'ks;j [kjhnrk gS] dEiuh ds mrus Hkkx dk

ekfyd gks tkrk gS ,oa dEiuh vius ykHk dk dqN izfr'kr va'k ¼fuos'k ds vuqlkj½ 'ks;j /kkjd dks nsrh gSA 'ks;j /kkdj dks fn;s tkus okys bl Hkkx dks ykHkka'k dgrs gSaA dEiuh ykHkka'k dk forj.k fdlh fuf'pr le; esa djus ds

fy;s dkuwuh :i ls ck/; ugha gksrh] cfYd vius lfo/kuqdwy le; ij forj.k dj ldrh gSA ykHkka'k forj.k ds vk/kkj ij 'ks;j /kkdjd izeq[kr% nks oxksZa esa foHkkftr fd;s tk ldrs gSa %&

¼v½ izkFkfed

izeq[k 'ks;j /kkjdksa ds ykHkka'k dh nj fuf'pr gksrh gS ,oa ykHkka'k vkoaVu esa mudks izkFkfedrk nh tkrh gSA

¼c½ lkekU; lkekU; 'ks;j /kkjdksa ds ykHkka'k dh nj fuf'pr ugha gksrhA dEiuh ds izcU/kdksa ,ao funs'kdksa }kjk fy,

x;s ykHkka'k fu.kZ;ksa ds vk/kkj ij gh ykHkka'k dh nj vkSj vkoaVu dk Øe fu/kkZfjr fd;k tkrk gSA viuh dEiuh ds 'ks;j cspus ds lkFk gh vki dqN vU; dEifu;ksa ds 'ks;j [kjhn Hkh ldrs gSa] ftuls vkidks le;&le; ij /ku

feyrk jgsxk vkSj m|ksx esa lgk;d fl) gksxkA vYidkyhu _.k óksr ¼dk;Z'khy iawth½

,sls O;; ftudh okj&ckj vko';drk iM+rh gS tSls dPpk eky vkfn ijA bu fujUrj gksus okys O;;ksa ds fy, vkidks dqN ,slh iawth dk izcU/k j[kuk iM+rk gS ftldk vki rqjUr mi;ksx dj ldsA bldks dk;Z'khy iwath

dgrs gSaA dk;Z'khy iawth ds fy, vkidks vYidkyhu _.k ksa dh vko';drk gksrh gSA buds izeq[k óksr bl izdkj gS%&

1. O;olkf;d m/kkj fdlh Hkh y/kq m|ksx dh mRiknu izfØ;k esa ;gka óksr cgqr gh egRoiw.kZ Hkwfedk fuHkkrs gSaA ;g Lo;a

mikftZr gksrs gSa] blds fy, vkidks fdlh ls iSlk m/kkj ugha ysuk iM+rk gS] cfYd vki iznk;dksa ls dPpk eky ys ysrs gSa vkSj mldk Hkqxrku ckn esa djrs jgrs gSaA bl izdkj ds _.k dk lcls vf/kd Qk;nk ;g gksrk gS fd u rks

vkidks vf/kd vkSipkfjdrk,¡ iwjh djuh iM+rh gS vkSj u vf/kd C;kt nsuk iM+rk gS] lkFk gh bleas vkidks lkeku dh uhykeh ;k fnokfy;k gksus dk [krjk Hkh ugha gksrkA lkeku dk _.k ysdj cph gqbZ uxn jkf'k dk mi;ksx vki

vU; oLrqvksa esa dj dlrs gSaA bl izdkj ds m/kkjksa dh miyC/krk iznk;dksa esa vkidh llk[k ij fuHkZj gksrh gSA ;fn vkidh lk[k

fu;fer :i ls m/kkj pqdkus okys O;fä ds :i esa gS rks vkidks lkeku ljyrk ls m/kkj fey tkrk gSA ;kfu fd ;fn iznk;d dks vki ;g fo'okl fnyk lds fd vki islk fu;fer le; ls pqdk nsaxs rks og vkidks m/kkj lkeku

ns nsxkA u;s m|fe;ksa dks cktkj ea lk[k u gksus ds dkj.k vkjEHk esa ;g m/kkj feyus esa ijs'kkuh gksrh gS vr% mUgsa uxn iSlk Hkh vf/kd ysuk iM+rk gSA ijUrq ,d ckj lEcU/k LFkkfir gks tkus ij blesa dksbZ fo'ks"k leL;k ugha vkrh

gSA 2. cSad

dk;Z'khy iawth ds :i esa _.k iznku djus okys cSad vkids vYidkyhu _.k óksr gSA ;g _.k vkidks vkidh lEifÙk ds vk/kkj ij feyrk gSA cSad }kjk vkidh izLrqr lEifÙk ds vk/kkj ij vkidks feyus okys _.k dh

lhek fuf'pr dj nh tkrh gSA bleas ls vki viuh vko';rkuqlkj iSlk fudky ldrs gSaA vf/kdrj ;g _.k mRiknu vkSj fcØh dh vko';drkvksa dks iwjk djus ds fy, feyrs gSsA ijUrq tc rd vki ;g _.k ugha pqdk nsrs

rc rd izLrqr lEifÙk] dPpk eky bR;kfn dk vf/kdkjh cSad dks gh ekuk tkrk gSA y?kq m|ksx dh mRiknu {kerk de gksrh gS vkSj mUgsa muds Hkqxrku feys esa vf/kd le; yxrk gS vr% mUgsa bl izdkj ds _.k vf/kd jkf'k ds

ysus iM+rs gSsaA dHkh&dHkh O;olkf;d gkfu gksus ij Hkh m|ksx dks pyw j[kus ds fy;s vkidks cSad ls _.k fey ldrk gS] ysfdu blds fy, lEcfU/kr cSad ls vkids O;olkf;d lEcU/k vPNs gksus vfr vko';d gSA

3 lkekftd m|eh dks dqN _.k ,sls feyrs gSa tks og lfØ; mÙkjnkf;Ro ds fofo/k :iksa esa pqdkrk gSA ;g _.k

m|ksx ,oa m|eh ds vuqkj cnyrs jgrs gSaA ;g _;m fuEu óksrksa ls fy, tk ldrs gSa%&

Page 22: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

20

¼v½ xzkgdksa ls vfxze HkqxrkuA ¼c½ fe=kksa ;k fj'rsnkjksa ls m/kkj ysukA ¼l½ funs'kd] deZpkfj;ksa vkfn ls vLFkkbZ iwath tek djokukA nh?kZ dkyhu _.k óksr ¼LFkk;h iawth½ m|ksx dks LFkkfir djus esa nhz/kZ dkyhu _.k dkQh egRoiw.kZ Hkwfedk fuHkkrs gSaA bl jkf'k dk iz;ksx m|ksx dh LFkk;h iwath tSls Hkwfe] e'khu] Hkou vkfn ds fy, fd;k tkrk gSA ;g _.k fuEu laLFkkvksa ls izkIr fd;s tk ldrs gSaA ¼v½ jkT; ljdkj jkT; ljdkj }kjk ;g _.k m|ksx foHkkx ds ek/;e ls fn;s tkrs gSaA bldks feyus esas yxHkx ,d o"kZ dk le; yx tkrk gSA ¼c½ jkT; foÙk fuxe bl fuxe }kjk vf/kdrj xSj lgHkkxh m|ksxksa dks gh _.k fn;k tkrk gSA ftldk iz;ksx m|ksx dh vpy o LFkk;h iwath ds fy, fd;k tkuk pkfg,A vko';drk iM+us ij blesa ls dqN va'k dk iz;ksx dk;Z'khy iawth ds fy;s Hkh fd;k tk ldrk gSA ¼l½ jkT; y?kq m|ksx fuxe ns'k esa y?kq m|ksxksa dks c<+kok nsus ds mís'; ls bl fuxe dh LFkkiuk dh xbZ gSSA bl fuxe ls y?kq m|ksxksa dks _.k ds vfrfjä vU; dbZ izdkj dh lgk;rk Hkh izkIr gksrh gS tSls& ljdkjh dk;kZs dk dqN fgLlk bu m|ksxksa dks fnykuk] vkMZj dh iwfrZ ,oa rduhdh lg;ksx] cktkj ds dk;Z tSls fcØh vkfn ,oa e'khu] midj.k mtyC/k djokukA

¼n½ cSad cSad ls feyus okyk nh?kZdkyhu _.k vkidh vpy lEifÙk vFkok fdlh izfrf"Br O;fä }kjk tekur ds vk/kkj ij feyrk gSA ;g _.k ,d fuf'pr nj ij fu;r le; esa pqdkuk gksrk gS ,oa ewyr% LFkk;h iawth tSls& e'khu] Hkou vkfn ds fy, fn;k tkrk gSA

blds vfrfjä vki vius fj'rsnkjksa ,oa fe=kksa] futh laLFkkvksa vkfn ls Hkh yEch vof/k ds _.k izkIr dj ldrs gSaA fuos'k ;kstuk ;kstuk cukus ls igys vki vius m|ksx ds O;;ksa dk Hkyh izdkj ls fo'ys"k.k dj ysa vki';drkuqlkj fuos'k djsaA

LFkk;h iawth ds fuekZ.k ;kfu mudk izcU/k ,d ckj gks tkus ls ckj&ckj ugha djk gksrk ,ao dk;Z'khy O;; mu vko';drkvksa dks iwjk djrs gSa tks ,d ckj iwjh gksus ds ckn fQj ls mRiUu gksrh gSS] tSls& dPpk eky [kjhnuk] deZpkfj;ksa dks osru vkfn dk HkqxrkuA mi;qZä fofHkUu O;;ksa esa fuos'k izcU/k djds ifj;kstuk ds Bhd izdkj ls izkjEHk gks tkus ds ckn vius m|ksx dh vkfFkZd fLFkfr dks etcwr cukus ds fy, le;&le; ij u;h ;kstukvksa dks yxkuk Hkh vko';d gSA ;g lkspuk xyr gksxk fd ,d ckj m|ksx LFkkfir gks tkus ds ckn mlh Lrj ij mRiknu ,oa fcØh esa /ku fuosf'kr djus ls ykHk gksrk jgsxkA e'khuhdkj.k] vk/kqfudhdj.k] u;k mRiknu 'kq: djuk] m|ksx dk foLrkj vkfn ,slh gh ;kstuk,¡ gSa] ftudk lQy dk;kZUo;u m|ksx dks vkfFkZd lEcy iznku djrk gSA bu ;kstukvksa esa iwath fuos'k djus ls igys mudk ewY;kadu djuk vfr vko';d gSA

Ø;&foØ; dks lHkh izfØ;k;sa mnkgj.kkFkZ foØsrk rFkk miHkksäk ds chp ds lEcU/k dk fo'ys"k.k djuk] ;kstuk cukuk] vldks dk;ZfUor djuk fu;fU=kr djuk vkfn foi.ku izcU/k ds vUrxZr vkrs gSaA mi;qä lHkh dk;ksZa esa fo'ks"k /;ku j[kuk pkfg, fd miHkksäk dks iw.kZ lUrks"k feys rHkh O;kikj ds mís'; dh iwfrZ gksrh gSA foi.ku ,d fopkj/kkjk gS] ,d ikB~; lkexzh gS ,oe~ ,d fuiq.k laLFkkxr dk;ZØe gSSA

Page 23: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

21

foi.ku lw=

mRoknu ,oe~ foØ; dk dk;Z izkjEHk djus ls iwoZ mRiknd dks Hkyh&Hkk¡fr le> ysuk pkfg, fd dkSu lh oLrq dk mRiknu fd;k tk; tks orZeku cktkj esa miHkksäk }kjk ije larks"k ls Ø; fd;k tk ldsA

;g lw=k mRiknd dks lgh fopkj djus dh {kerk ,oe~ ijke'kZ nsrk gSA og miHkksäk ,oe~ mldh vko';drk dks le>us esa leFkZ gks tkrk gS rnqijkUr og lgh oLrq dk mRiknu dj foØ; djus esa lQy gksrk gSA miHkksäk tks oLrq Ø; dj jgk gS] mlds :i dks egRo u nsdj ;g fujh{kd djksfd mls ml oLrq ls D;k ykHk gks jgk gSA bl fujh{k.k vkSj v/;;u ds vk/kkj ij vkidks uohu oLrqvksa ds mRiknu ds laHkkfor volj izkIr gksaxsA yksx xfeZ;ksa esa igkM+ksa ij D;ksa tkrs gSa\ mUgsa D;k ykHk izkIr gksrk gS\ 'khry okrkoj.k gfj;kyh Hksj n`'; izkÑfrd lkSUn;Z lLrs Qy xzh"e dkyhu mRlo ekufld 'kkfUr euksjatu jksekafpr okrkoj.k ifjorZu mnkgj.kkFkZ Hkkjro"kZ esa dwyj dk fodkl gqvk D;ksafd cgqr yksxksa dks mlls 'khry okrkoj.k feykA dwyj] igkM+ ij tkus ds vfrfjä dgha vf/kd lLrk gh ugha iM+k] oju~ os vf/kd le; rd 'khry okrkoj.k dk mi;ksx dj ldsA foi.ku esa lQyrk rHkh izkIr gksxh tc m|eh ;g le> ys fd miHkksäk D;ksa Ø; djrk gSSA lgh foi.ku dk vFkZ gS] mu oLrqvksa dk cukuk ftldh miHkksäk dks vko';drk gS] u fd og oLrq,a cspuk tks m|eh cuk ldrk gSA orZeku ,oa Hkkoh cktkj esa vkids m|ksx ds lk/ku miHkksäkvksa dks lUrq"V djus esa] fdl lhek rd izHkko'kkyh gS bl ij vkidh lQyrk vk/kkfjr gSA cktkj dk ewY;kadu cktkj esa fofHkUu izdkj ds miHkksäk gksrs gSaA vr% mudh vko';drk,¡ Hkh fofHkUu gksrh gSa loZizFke u;s m|eh dks le>uk gS fd mlds }kjk mRikfnr oLrq dh cktkj esa ek¡x dSlh gSA lkFk esa ;g Hkh tkuuk vko';d gS fd izfrLi/kkZ fdruh gSA m|eh vius lk/kuksa dh miyC/krk ,oe~ fdruk ykHk mls izkIr gks ldrk gS ;g le>dj gh og vius miHkksäkvksa dk pquko dj ldrk gSA cktkj dk eY;kadu rhu rF;ksa ij vk/kkfjr gSA 1. ek¡x dk fo'ys'ky 2. izfrLi/khZ dh lhek dks le>uk 3. O;kikj fof/k;k¡ ek¡x dk fo'ys"k.k miHkksäkvksa dh bPNk ,oe~ lkeF;Z dks /;ku esa j[kuk gSA 1. ;fn miHkksäk x`gLFkh dk lkeku Ø; dj jgk gS rks izR;sd ?kj tkuk lEHko ugha] vr% m|eh dks ,d nqdkunkj ls gh lEidZ djuk pkfg,] ;fn miHkksäk laLFkkxr gS rks m|eh Lo;a laLFkkvksa esa tkdj lEidZ dj ldrk gSA 2. ;fn miHkksäk fofHkUu izns'kksa ds gSa] fofHkUu vkfFkZd Lrj ds gSa rc mfpr vkdM+s ,df=kr fd;s tk,a rHkh lgh cktkj ewY;kadu gks ldrk gSA 3. ;fn miHkksäk vR;Ur foLr`r {ks=-k esa QSys gSa vkSj la[;k esa Hkh vf/kd gS rc mfpr gksxk] Mkd }kjk i'ukoyh Hkst dj izfrfØ;k;sa yh tk;saA ek¡x yksp ;fn FkksM+s ls ewY; esa vUrj ds QyLo:i miHkksäkvksa dh ek¡x ls cgqr vUrj vk tk, rks ek¡x esa yphykiu gSA blds foijhr ;fn ewY; esa ifjorZu ls ek¡x esa fo'ks"k vUrj ugha vkrk rc ek¡x esa yphykiu ugha gSA bu ifjfLFkfr;ksa esa fuiq.k ijke'kZ dh vko';drk gS ftlls ewY; esa LFkkf;Ro jg ldsA izfrLi/kkZ dh fLFkfr dks le>uk 1. fdruh dEifu;k¡ vkids tSls mRikn dk foi.ku dj jgh gS\ 2. mudh cktkj ek¡x fdruh gSA 3. muds }kjk mRikfnr lkexzh esa D;k xq.k vFkok =kqfV gS\ 4. izR;sd czkUM ds izfr miHkksäkvksa dh /kkj.kk D;k gS\

Page 24: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

22

5. vkids izfr}Unh dkSu lh cktkj uhfr dk iz;ksx djrs gSa\ 6. eq[; miHkksäk dkSu gS\ mi;qZDr rqyukRed pkVZ ls m|eh dks viuh mRikn dh =kqfV] deh] 'kfä Hkkoh volj vkSj ,oe~ ladV vkSj gkfu dk Kku gksrk jgsxkA rHkh og vius iz;klksa esa miHkksäk lUrks"k vkSj mudh mi;ksfxrk dk /;ku j[k i;sxkA forj.k ek/;e O;kikj ds vH;kl ls m|eh vius miHkksäk rd lgh :i ls igqapus dh fof/k le>rk gSA dqN ifjfLFkkfr;ksa esa m|eh lh/ks miHkksäk rd ugha igqap ldrk] cgqr e/;LFk iz;qä gksrs gSaA vr% izkjEHk esa m|eh dh fofHkUu izdkj ds e/;LFkksa ds lEidZ ls gksus okys ykHk&gkfu dk Kku izkIr djuk vfr vko';d gSA mRiknd miHkksäk mRiknd nqdkunkj miHkksäk mRiknd nqdkunkj miHkksäk nqdkunkj miHkksäk cktkj oxhZdj.k cktkj fofHkUu izdkj ds vo;oksa ls feydj curk gSA ftuds vyx&vyx xq.k gksrs gSa tks fd f'k{kk jkstxkj] vk;]fLFkfr] ilUn] ukilUn] vkSj fopkjksa esa ,d nwljs ls fHkUu gSaA muesa ls lHkh yksx fdlh ,d mRikn ds [kjhnnkj ugha gks ldrsA

cktkj oxhZdj.k }kjk xzkgdksa ds lewg dks muds leku xq.kksa }kjk foHkä fd;k tkrk gS tks fd mRikn ds y{; lewg gksrs gSaA oxhZdj.k ds vk/kkj (i) HkkSxksfyd xzke] uxj] jkT;] ns'k] Hkkx] igkM+h ?kkVh] xzkeh.k] 'kgjh bR;kfnA ftyk ftlesa m|e LFkkfir gSA HkkSxksfyd foHkktu (ii) tula[;k vk/kkfjr vk;q% cPpk] ;qok] o;Ld] cw<+k] fyax%] iq:"k] L=kh vk;% mPppoxhZ;] e/;e oxhZ;] xjhch js[kk ls uhpsA O;olk;% vf/kk'kk"kh] O;olk;h] f'k{kk% izkFkfed b.VjehfM,V] Lukrd Hkk"kk%

tula[;k vk/kkfjr foHkktu (iii) euksfoKku foHkktu :f<+oknh vFkok] vk/kqfud vfHko`fr] LokoyEch ukSdjh is'kk ifjJeh] ekSth izo`fÙk blh rjg ls cktkj foHkktu ds vU; vk/kkj Hkh gks ldrs gSaA mnkgj.kr;k Hkwzeiku u djus] okys bR;kfnA ,d igpkuk gqvk Hkkx vo'; gh vU; Hkkxksa ls vyx gksuk pkfg, rHkh mls cktkj dk fgLlk dgk tk dlrk gSA og oxhZdj.k mRikn@lsokkvksa dh foØh c<+kus] ewY; fu/kkZj.k] ,oa iSfdax ds mfpr mik;ksa dks iz;ksx djus esa lgk;d gksrk gSA

foi.ku ds euds m|fe;ksa dks ftu egRoiw.kZ leL;kvksa dk lkeuk djuk iM+rk gS muesa ls foi.ku lEcU/kh leL;k;sa izeq[k gsaaA foi.ku ,oa fcØh ds QdZ ds lEcU/k esa LFkkfir m|fe;ksa o f'k{kkfonksa ¼tu lk/kkj.k dh rks ckr gh ugha½ ds e/; dbZ vLi"V vo/kkj.kk;sa gSA 0.1 ;qok m|eh vius foi.ku iz;klksa ds Qy 'kh?kz pkgrs gSaA mudk dguk gS fd ;fn cM+h dEifu;k¡ vius mRikn cgqr ljyrk ls cpSuh gSa rks os D;ksa ugha csp ldrsA foi.ku cuke foØ; 0.2 foØ; lkekU;r% lsok@mRikn dks /ku ds cnys esa nsus dh izfØ; gSaA ge yksx cl] jsy ;k=kk ds nkSjku ,sls lsYleSu ds lEidZ esa vkrs gSa tks ckyisu] dye ;k Qyksa dh Vksdjh ;k blh rjg dh dbZ oLrq;sa csprs gSa ij tc ,d ckj gekjs gkFk ls iSlk fudy tkrk gS rks bu lsYleSau dk dgha irk ugh pyrk gSA og xk;c gks tkus dh pkky py ysrk gSA 0.3 ;g rF; gS fd foØ; foi.ku dk gh eq[; vax gS ij foi.ku foØ; ls T;knk egRoiw.kZ gSA foi.ku xzkgd dh larqf"V ds fy;s fd;k x;k ,d yxuiw.kZ dk;Z gSA egkRek xk¡/kh us bl fi"k; esa tks dgk gS og lgh gS%& gekjs dk;kZy; esa vkus okyksa esa xzkgd cgrq egRoiw.kZ gksrk gSA og ge ij fuHkZj jgrk gS] ge ml ij fuHkZj jgrs gSaA og gekjs dke esa :dkoV mRiUu ugha djrkA gekjk dk;kZy; mlh ds fy;s gS] xzkgd mldk ,d Hkkx gSA ge lc mldk dke djds ml ij dksbZ ,glku ugha dj jgs gSaA og ge ij ,glku djds gedks oSlk djus dk ekSdk ns jgk gSA 0.4 blhfy;s ,d foØrk ds fy, xzkgd ,d ^^bZ'oj^^ ds leku gksuk pkfg,A^^bZ'oj^^ ls 'kk;n dfBu gksxkA

Page 25: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

23

y/kq m|ksxksa esa dEI;wVj ,oa lwpuk rduhd izkjafHkd nkSj esa dEI;wVj dks oSKkfud ,oa lka[;dh; x.kuk djus ds fy, ,d mi;ksxh lk/ku ek=k ds :i esa ns[kk tkrk FkkA rRi'pkr ik;k x;k fd dEI;wVj dks lwpuvksa o vkadM+ksa ds LVksjst] izkslsflax ,oa iqu% mi;ksx gsrq Hkh iz;ksx fd;k tk ldrk gSA ;EI;wVj vkSj lapkj iz.kkyh dks tksM_dj bl izdkj dh lwpuk,a o vkadM+s ,d LFkku ls nwljs LDkku ij Hkstk tkuk Hkh laHko gks x;kA okn esa bldh mi;ksfxrk dk nk;jk oSKkfud leqnk; ds c<+dj O;kikfjd laxBuksa vkSj ljdkjh ra=k QSy x;k D;ksafd blds }kjk dkQh o`gn lwpukvksa dh izkslsflax ,oa fQj bls izca/kdh; mi;ksx gsrq vko';d :ikksa esda ifjofrZr djuk vlaHko ugha FkkA vkt] thou dk izk;% dksbZ Hkh {ks=k f'k{kk] fpfdRlk] euksjatu] O;kikj] 'ks;j cktkj] iz'kklu] cSfsadx vkfn dEI;wVj o lwpuk rduhd ds izHkko ls vNwrk ugha jg x;k gSA lwpuk rduhd Hkkjr fo'o esa lepuk rduhsd] fo'ks"kdj] lk¶Vos;j ds {ks=k d fodkl o mRlkg ds fy, dsUæ ljdkj }kjk ,d u, lwpuk rduhd ea=kky; dh LFkkiuk 15 vDVwcj 1999 dks dh xbZA rhoz xfr ls fodkl gsrq lwpuk rduhd dh vke turk rd igq¡p lqfuf'or djus ds fy, bl ea=kky;dh Hkwfedk lg;ksxh izsjd ijke'kZnkrk dh gksxhA Hkkjr esa lwpuk rduhd Økafr dks c<+kok nsus ds fy, lqfu;ksftr iz;klksa dh vko';drk gS fo'ks"kdj] bl {ks=k ls tqM+h lsok,a] f'k{kk] izf'k{k.k] dEI;wVj gkMZos;j o lkW¶os;j fuekZ.k ,oa fu;kZr] bySDVªfud dkelZ vkfn {ks=kksa esaA

lwpuk rduhd {ks=k ds fodkl gsrq vuqdwy okrkoj.k rS;kj djkus ds fy, ljdkj }kjk Hkh vusd uhfr;k¡ cuk;h xbZ gSa] ftuesa ls dqN izeq[k bl izdkj gS% lWk¶Vos;j VsDukykth ikdZ esa LFkkfir lwpuk rduhd m|kksxksa dks nl o"kZ rd ds fy, dj esa NwV] 'kks/k ,oa fodkl ds {ks+=k esa LFkkfir m|ksxksa@bdkb;ksa dks 10 o"kZ rd ds fy, dj esa NwV }kjk izksRlkfgr djuk] lk¶Vos;j m|ksx gsrq dk;Z'khy iw¡th @foÙk vyx fn'kk&funsZ'k] dEI;wVj ij âkl nj dh o`f)] lepuk rduhd gsrq osapj dSfiVy QaM dh LFkkiuk] fu;kZrksUeq[kh ;kstukvksa ds fØ;kUo;u gsrq ,dliksVZ o baiksVZ ikfjlh dk ljyhdj.k o mnkjhdj.kAHkkjr fo'o dk lkrok¡ ns'k gS tgk¡ lepuk rduhdh ds fy, vyx dkuwu gS ¼vkbZ-Vh-fcy2000½ ftlesa bl {ks=k dh xfrfof/k;ksa] cqfu;knh <k¡ps ds fodkl] varjkZ"Vªh; O;kikj] lacaf/kr midj.kksa ds vk;kr&gu;kZr vkSj lkbcj vijk/kksa ij jksd yxkus ds fy, vusd izkfo/kku lfEefyr gsA u, dkuwu us O;olkf;d dk;kZs ds fy, fMftVy gLrk{kj dks Hkh ekU;rk ns nh gSA

izns'k ljdkj }kjk Hkh bl {ks=k esa m|fe;ksa dks vlhfer volj miyC/k djk, tk jgs gSaA lepuk rduhdh m|ksx ds leqfpr fodkl gsrq vko;';d cqfu;knh <k¡pk Hkh folfdr fd;k tk jgk gSA lk¶Vos;j ds fuekZ.k o fu;kZr esa m-iz- dk ns'k esa nwljk LFkku gsA vdsys uks,Mk esa 1999-00 esa LFkkfir lk¶Vos;j bdkb;ksa dh la[;k 600 FkhA uks,Mk] y[kuÅ] dkuiqj] vkxjk] bykgkckn] okjk.klh] xksj[kiqj] esjB] cjsyh] QStkckn] xkft;kckn] vyhx<+] o >kalh ftyksa ds fy, izns'k ljdkj }kjk ^LekVZfldVh^ ifj;kstuk pyk, tkus dh ;kstuk cukbZ tk jgh gSA vkxjk] dkuiqj] okjk.klh o eqjknkckn esa O;olkf;d ^go^ rFkk mi;qDr fu;kZr dsUæksa esa bZ&dkWeklZ dh lqfo/kk hkh nh tk jgh gSA ;gh ugha vkxjk] dkuiqj] uks,Mk o xzsVj uks,Mk esa ^bySDVªkfud fldVh^ o ^lwpuk rduhd ikdZ^ Hkh fodflr fd, tk jgs gSA ;s lHkh iz;kl bl {ks=k esa fuos'k ,oa cktkj ds fy, izpqj volj miyC/k djkus esa lgk;d gksaxs vkSj blh ds lklFk gkMZos;j] lk¶Vos;j nksuksa gh {ks=kksa esa izf'kf{kr dq'ky o n{k Je 'kfDr dh vko';drk dks ns[krs gq, lwpuk rduhd ds {ks=k esa f'k{kk o izf'k{k.k gsrq lEHkkouk,a vf/kd ifjyf{kr gks jgh gSA bySDVªkfud o lepuk rduhd dh bl ØkfUr ds nkSjku tks uohu vk;ke lkeus vk, gSa] muesa baVjusV o bySDVªksfuDl dkelZ ¼bZ&dkelZa½ esa izR;sd {ks=k esa O;kikj ds ijaijkxr rjhdksa dks ,dne cny fn;k gSA baVjusV%

Hkkjr esa baVjusV lsok dk izkjEHk fons'k lapkj fuxe fyfeVsM ¼ch-,l-,u-,y-½ us 1995 esas dh FkhA yxHkx rhu o"kZ i'pkr ucEcj 1998 esa futh lsok iznk;dksa dks bl {ks=k esa vkus dh NwV nh xbZ vkSj bldks rqjar ckn gh 50 ls vf/kd dEifu;ksa us vkbZ-,l-ih- ¼baVjusV lfoZl izksokbMj½ ykblsal ds fy, vkosnu fd;k vkSj vkt budh la[;k 400 ls vf/kd gks xbZ gSA blh ls bl {ks=k esa laHkkoukvkas@voljksa dk vkadyu fd;k tk ldrk gSA bl le; usV vkSj bySDVªksfud O;kikj esa yxHkx 1 ykk[k ykssxksa dks jkstxkj feyk gSA ljdkjh iz;klksa vkSj futh Hkkxhnkjh ds lkFk&lkFk gh Hkkjrh; cktkj dk vkdkj Hkh c<+rk tk jgk gSA baVjusV oLrqr% dEI;wVjksa dk ,slk latky gS ftls ^bUQkesZ'ku gkbos^ Hkh dgk tkrk gSA bl rduhd ds tfj, fo'o ds djksM+ksa dEI;wVj ijLij tqM+dj lwpukvksa dk vknu&iznku dj ldrs gsaA baVjusV dh lgk;rk ls O;fDr fo'o ds fdlh Hkh dksus esa fLFkr O;fDr ls dEI;wVj ds ek/;e ls ckr dj ldrk gS] byhSDVªkgud esy ¼bZ&esy½ Hkst ldrk gs] ohfM;ks dkaQzsflax dj ldrk gSA baVjusV us vikj lwpukvkas ds bjokts [kksy dj dqN gh

Page 26: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

24

le; esa yksxksa dh thou 'kSyh dks cny Mkyk gSA ;gh ugha] fofHkUu O;olk;ksa esa yksxksa dks dke djus ds rjhdksa dks Hkh izHkkfor O;olk;ksa esa yksxksa dks dke djus ds rjhdksa dks Hkh izHkkfor djus ds lkFk gh m|fe;ksa ds fy, vusdksa O;kikfjd lqfo/kk,a Hkh bl rduhd us iznku dj nh gSA vkt gj jkst u, m|ksx LFkkfir gks jgs gSaA mÙkjksÙkj ykHk vftZr djus ds fy, vkSj ,d u, cktkj ds fuekZ.k ds fy, m|eh bu rduhdksa dk mi;ksx dj jgs gSaA baVjusV dk mi;ksx djds m|eh vius mRikn dj jgs gSa A baVjusV dk mi;ksx djds m|eh vius mRikn o fMtkbu dks vR;ar de ykxr o le; esa nqfu;k Hkj esa igq¡p ldrs gSa vkSj ekax ds vuqlkj vkMZj izkIr dj ldrs gSaA ;g baVjusV ;k lwpuk rduhd Økafr dk ,d egRoiw.kZ o v/kqukru vk;ke gS ftls ^bySDVªkfud dkelZ^ ;k ^bZ&dkelZ^ dgk tkrk gSA bZ&dkelZ esa O;fDr baVjusV }kjk fo'o ds fdlh Hkh dksus ls fdlh Hkh oLrq dh [kjhn Qjks[r ,oa Hkqxrku dj ldrk gSA bZ&dkelZ O;olk; laxr dks u, cktkj miyC/k djkus ds lkFk gh mRikn ds izpkj ,oa forj.k gsrq vf/kd volj] ykHk Hkh ^miyC/k djkrkgSA ijUrq blds lkFk gh izfr;ksfxrk esa gqbZ c<+r dks Hkh udkjk ugha tk^ ldrkA vc O;olkf;d izfrf}Unrk HkkSxksfyd lhekvksa dks ihNs NksM+ pqdh gSA mRikn dh xq.koRrk] uohurk] vfpr o de nke vkSj csgrj lsok,a gh lQyrk ds ekud cu x, gSa D;ksafd ;gh os ekud gSaA ftuds vk/kkj ij nqfu;k ds fdlh Hkh dksus esa fLFkr vkidk izfr}Unh] ftls vki laHkor% tkurs Hkh ugha] vkils vkxs tk ldrk gSA lwpukvksa dh vklkuh ls myC/krkA dEI;wVj ij ,d cVu nckrs gh fuekZrk@xzkgd dks lacaf/kr mRikn ds fMtkbu] óksrksa] ewY; o miyC/krk vkfn ds fo"k; esa lkjh tkudkjh gks tkuh pkfg,A bZ&dkelZ ds pkj izdkj bl izdkj gSa % 1. O;kikj cuke O;kikj ¼ch 2 ch½( 2. O;kikj cuke xzkgd ¼ch 2 ch½( 3. xzkgd cuke O;kikj ¼ch 2 ch½( 4. xzkgd cuke xzkgd ¼ch 2 ch½( uSldke ds ,d losZ{k.k ds vuqlkj 2001-02 esa Hkkjr dk bZ&dkelZ O;kikj :- 10,000/- djksM+ gksus dk vuqeku gSA bZ&dkelZ ds ykHk bldk lcls cM+k ykHk dkxt foghu vknku&iznku dh lqfo/kk iznku djuk gA æqr xfr] ux.; fcpkSfy,] de lapkj [kpZ] de forj.k dsUæ vkfn m|fe;ksa dks mRiknu@O;kikj ykxr esa deh o ykHk esa o`f) ds volj miyc/k djkrs gSaA m|fe;ksa ds lkFk&lkFk miHkksDrkvksa@xzkgdksa dks Hkh vusdksa ykHk gS tSls% vklku Ø; izfØ;k o lqfo/kk] fofHkUu forjdksa o mRiknksa rd igq¡p] de nke dh lqfo/kk] p;u ds vf/kd fodYi o volj vkfnA bZ&dkelZ esa ,d fo'ks"k ckr ;g Hkh gSS A

Page 27: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

25

vkbZ- ,l- vks- -9000

orZeku le; esa thou ds lHkh vk;keksa rFkk Lrjksa ij xq.krÙkk dh ckr dh tk jgh gSA fo'ks"kdj vkt ds cnyrs ifjos'k esa xq.koÙkk dk egRo vkSj Hkh c<+ x;k gsA fo'o ds yxHkx lHkh fodflr ,oa fodkl'khy ns'k pg eglwl djrs gSa fd iwjs fo'o esa xq.koÙkk dk Lrj ,d leku gksuk pkfg,A blh ds vuq:i] lkjs fo'o dks ,d {ks=k ekurs gq, ^DokfyVh eSustesUV flLVe^ ¼QMS½ fodflr djus dh izfØ;k] izkjEHk dh xbZ gSA rduhdh ,oa mRikn fofuZfn"Vksa ds mís'; dh izkfZIr ds fy;s] ^^U;wure ykxr ,oa izcU/kdh; izfØ;kvksa^^ ds ekudhdj.k ds fy,] o"kZ 1978 esa fczVsu xfBr ,d desVh }kjk dk;Z ;kstuk cukgbZ xbZA blds ckn lu~ 1987 esda rS;kj fd;s x;s xq.koÙkk ekud orZeku esa vkbZ-,l-vks- vFkkZr -9000 lhjht ds uke ls tkus tkrs gSaA vkbZ-,l-vks- vFkkZr International organisation for Standardistaion. fo'o leqnk; esa mRikn&xq.koÙkk ekudksa ds fu/kkZj.k gsrq Hkkjrh; ekud C;wjks Bureau of Indian standards (BIS) Hkkjr dk izfrfuf/kRo djrk gSA vkbZ-,l-vks- 9000 uked ek=kk mRikn dh xq.koRrk ij fo'ks"k cy ugah nsrs gS] cfYd izfØ;k ls lEcfU/kr ekud izLrqr djrs gSaA D;ksfd fdlh laxBu ¼m|ksx] O;olk;] lsok,a ,oa vU;½ dh dk;Z i)fr ;fn O;ofLFkr ,oa lqpk: gks tk; rks mRikn dh xq.koÙkk vius vki Bhd gks tk;sxhA vkbZ-,l-vks- 9000 ds mn~ns'; % vkbZ-,l-vks- 9000 dk eq[; mn~ns'; vUrjkZ"Vªh; Loj ij xq.koÙkk ekudksa esa lkeatL; cukuk rFkk ,d:irh iznku djuk gSA vFkkZr ge laxBu esa tks Hkh dk;Z dj jgs gSA ml dk;Z dks djus ds fy, vUrjk"Vªh; fu/kkZfjr ekudksa ds vuq:i izfØ;k dk fu/kkZj.k dj ysaaaA bl ekud izfØ;k dks Øec) dj ,d nLrkost dk :i nsdj izfØ;k ds vuq:i fØ;kUo;u djuk gh vkbZ-,l-vks- 9000 gSA vkbZ-,l-vks- 9000 esa xq.koÙkk dk rkRi;Z vkbZ-,l-vks- 9000 ds vUrxZr xq.koÙkk dk ekud ,slk gksuk pkfg;s tks laLFkk] foHkkx vFkok bdkbZ dh vko';drkvksa ds vuq:i ,oa mís';ksa dh iwfrZ mi;qDr gksA mi;ksx gsrq mi;qDr rFkk miHkksxdrkZ dh vis{kk vuqlkj gksA vkbZ-,l-vks- ds vUrxZr xq.koÙkk ds ekud fu/kkfZjr djus gsrq ftu fcUnqvksa ij /;ku j[kus dh vko';rk gS os fuEuor~ gS %& 1. miHkksDrk dh vko';drk dks tkuukA 2. ml vko';drk dh vkiwfrZ gsrq dk;Z iz.kkyh ,oa izfØ;k fodflr djukA 3. pwd jfgr fuekZ.kA 4. iwoZ dk;Zuf"iknu ds vk/kkj ij fofHkUu óksrksa ls izkIr lwpuvksa ,oa vuqHkoksa dk Hkfo"; esa dk;Zuqlkj gsrq iz;ksxA 5. izHkfor dk;Z izn'kZu ,oa lq/kkjA 6. Li"V ,oa fyf[kr funZs'kA 7. mi;qDr iSdsftaxA 8. fuf'pr le; ij vkiwfrZA 9. vkiwfrZ mijkUr dq'ky lsokA 10. mfpr ek/;eksa dk iz;ksxA 11. mfpr izf'k{k.kA 12. fofHkUu ?kVdksa ds chp lketaL;A vkbZ-,l- vks- 9000 ds fØ;kUo;u dh izfØ;k fdlh Hkh laxBu esa vkbZ-,l-vks- 9000 dk fØ;kUo;u ,d Øec) ;kstuk ds ek/;e ls ikØp pj.kksa esa fd;k tkrk gSA izFke pj.k %& ;kstuk cukuk %& izFke pj.k esa leL;k dk vkadyu djus gsrq laxBu ds fo'ks"k lewgksa rFkk O;fDr;ksa }kjk fd;s tk jgs dk;kZs dh izfØ;k dks tks pyu esa gSa] mls tkuus dk iz;kl fd;k tkrk gSA bl vk/kkj ij bu izfØ;kvksa ,oa vkbZ-,l-vks- 9000ekudksa ds chp ds vUrj dks le>us dk iz;kl fd;k tkrk gSA blh vUrj ds vk/kkj ij laxBu esa vkbZ-,l-vks- ds fØ;kUo;u gsrq ;sktuk cuk;h tkrh gSSA f}rh; pj.k %& 1. lkekU; izf'k{k.k dk;ZØe %& bl pj.k ds vUrxZr izf'k{k.k dk;ZØeksa ds ek/;e ls bl iwjh ;kstuk ds laca/k esa leLr lsodksa dh foLr`r tkudkjh iznku dh tkrh gSA ftlls laxBu fo'ks"k ds leLr lsodksa dks bl dk;Z gsrq O;ogkfjd :i ls rS;kj fd;k tkrk gSA bl vk/kkj ij gh Hkfo"; esa vkbZ-,l-vks- ds izHkkoh fØ;kUo;u lEHko gksrk gSA

Page 28: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

26

2. xq.koÙkk ;kstuk fØ;kUo;u izf'k{k.k %& bl dk;ZØe esa fofHkUu O;ogkfjd igyqvksa ij izf'k{k.k iznku fd;k tkrk gSA blds ek/;e ls fdlh laxBu fo'ks"k esa vkbZ-,l-vks- dsd izHkkoh fØ;kUo;u gsrq fdl izdkj ds ifjorZu dh vko';drk gS rFkk xq.koÙkk ;kstuk ds lQy lapkyu gsrq fdl izdkj ds izi=k] izk:i] fu;e rFkk vU; rkSj rjhds cukus dh vko';drk gS ij tkudkjh iznku dh tkrh gSA 3. vkUrfjd vkads{kd (Internal Auditor) izf'k{k.k dk;ZØe %& xq.koÙkk ekin.Mksa dks bl ;kstuk fØ;kUo;u ds ek/;e ls fu/kkZfjr ekin.Mksa dk ifjikyu lqfu'fpr djkus gsrq le;&le; ij vkUrfjd vkads{k.k (Intarnal Auditor) djk;s tkus dh O;oLFkk gSA vr% bl O;oLFkk ds lqpk: :i ls lapkyu gsrq fofHkUu vkfMV fu;eksa rFkk ekin.Mksa dk fu/kkZfj.k Hkh bl ;kstuk esa djuk gksrk gSA ftlds fy;s laxByu fo'ks"k esa dqN fpfUgr vkUrfjd vkfMVjksa dks] vkfMV laca/kh fofHkUu fo"k;ksa tSls fd vfMV dh ;kstuk cukuk] vkfMV djuk] vkfMV djkuk rFkk vkfMV ds O;ogkfjd igyqvksa ij izf'k{k.k iznku fd;k tkrk gSA 4. vkfMVj@yhM vkfMVj izf'k{k.k dk;ZØe %& vkbZ-,l-vks- 9000 fu;e ds vuqlkj izR;sd 100 lsodksa ds mij ,d yhM vkfMVj dk gksuk visf{kr gsSA yhM vkfMVj ,d ;k T;knk gks ldrs gSa budks laxBu fo'ks"k ds vfrfjDr fo"k; ij vfrfjDr izf'k{k.k iznku fd;k tkrk gs rkfd vkUrfjd vkfMV izHkko'kkyh rjhds ls fd;k tku lEHko gksA r`rh; pj.k %& bl pj.k esa ;kstuk fØ;kUo;u lEcU/kh fofHkUu izys[kksa dks fodflr fd;k tkrk gS rFkk fØ;kUo;u dh izfØ;k ds izys[kksa dks mi;qDr ,oa izHkko'kkyh rjg ls ykxw djus gsrq fo'ks"k ijke'kZ l=k vk;ksftr fd;s tkrs gSaA prqFkZ pj.k %& fØ;kUo;u %& r`fr; pj.k esa LFkkfir dh tk jgh izfØ;k dk ,d iwoZ vkads{k.k (Audit) bl pj.k esa fd;k tkrk gSA iape pj.k %& bl pj.k esa izek.khdj.k laLFkk ds p;u ds ckjs esa ijke'kZ fn;k tkrk gsA p;fur izek.khdj.k laLFkk }kjk izek.k i=k iznku fd;s tkus ds iwoZ dksbZ vU; dk;Z vFkok lq/kkj] ;fn vko';d gS rks muds ckjs esa Hkh ijkek'kZ fn;k tkrk gSSA blds mijkkUr lHkh eukdksa dks mi;qDr ik;s tkus ij laxBu dks vkbZ-,l-vks- -9000 ds fu;ekuqlkj izekf.kr fd;k tkrk gSSA vkbZ-,l-vks- 9000 izfØ;k dks ykxw djus ds ykHk %& fdlh Hkh laLFkk laxVu esa vkbZ-,l-vks- 9000 izfØ;k ykxw djus ls laxBu dks fuEu ykHk gksrs gSa%& 1. xkzgd dks %& & fo'oluh; ,oa HkjkslseUn mRikn & mUur vkiwfrZ & ek¡x ds vuqlkj lQyrk iwoZd vkiwfrZ dh lEHkkoukA & izfr;ksxh ewY;A & ifjorZu ds vuqdwy izfrfØ;kA 2. laxBu dks %& & xq.koRrk ds vk/kkj ij mRikn ds vLohd`r gksus dh nj esa dehA & ifjpkyu ds mUur ifj.kkeA & izfrQy esa lkeatL;A & xzkgd dks csgrj larqf"VA & cktkj dh fgLlsnkjh esa o`f)A & fofu;kstu ds csgrj ykHkA 3. deZpkfj;ksa dks %& & fu/kkZfjr dk;Z ;kstuk ,oa ftEesnkfj;kaA & fu/kkZfjr dk;Z esa larqfyr Lrj esa o`f)A & eukscy esa o`f)A & csgrj dk;Z djus dk okrkoj.k A & yxu 'khyrkA & vkRe xkSjo dk cks/kA 4. vkiwfrZdrkZ ,oa lk>snkjksa dks %& & fLFkjrkA & fujUrj fodklA & lk>snkjh ds chp esa csgrj vkilh lkeatL;A 5. lekt dks %& & fu;e ,oa dkuwuksa dk csgrj ifjikyuA

Page 29: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

27

& lqj{kk ,oa LokLF; dh lEHkkoukvksa esa o`f)A & i;kZoj.k ij gksus okys dqizHkkoksa esa dehA vkbZ-,l-vks- ,oa ch-vkbZ-,l- esa vUrj 1. vkbZ-,l-vks- b.Vjus'kuy LVS.MMZ vkxsZukbts'ku gS vFkkZr~A 2. vkbZ-,l-vks- 9000 DokfyVh flLVe dk LVs.MMZ gS ;g ekud dsoy mRikn dh xq.koRrk rd gh lhfer ugha gS cfYd e'khuksa dh l{kerk eSVhfj;y dh DokfyVh] cukus dk rjhdk ,oa cukus okys lsodksa dh dk;Zdq'kyrk ij Hkh /;ku nsrs gSaaA 3. ;g laLFkk] laxBu ,oa bdkbZ dh ^dk;Ziz.kkyh^ dk ekud gSA 4. vkbZ-,l-vks- 9000 LVS.MMZ dh 'kq:vkr 1987 esa dh xbZA 5. vkbZ-,l-vks- 9000 izek.k i=k izkIr djus ds i'pkr Hkh le;&le; ij fu/kkZfjr ,oa ekU; izfØ;kvksa dk ifjikyu fd;k tk jgk gS vFkok ugha] tkuus ds fy,] vkfMV fd;k tkrk gSA 6. vkbZ-,l-vks- 9000 izek.k i=k izkIr gksus ij gekjk mRikn ,oa laxBu xq.koRrk esa vUrjkZ"Vªh; Lrj ij ekU; gksrk gSA 1. Hkkjrh; ekud O;wjks jk"Vªh; Lrj dh ekud fu/kkZdjd laLFkk gSA 2. ch-vkbZ-,l- ds ekud ddsoy mRikn dh xq.koRrk cuk, j[kus rd gh lhfer gSA 3. ;g mRikn fo'ks"k dh xq.koRrk dk ekud gSA 4. vkbZ-,l-vkbZ- dk izek.khdj.k ^vf/kfu;e 1952' ds vUrxZr cus fu;eksa ds vuqlkj eatwj fd;k tkrk gsA ¼iwoZ esa ch-vkbZ-,l- dks- vkbZ-,l-vkbZ- ds :i esa tkuk tkrk FkkA½ 5. vkbZ-,l-vkbZ- esa xq.koÙkk lqfuf'pr djus gsrq le;&le; ij mRikn dk vkdfLed fujh{k.k fd;k tkrk gSA 6. ch-vkbZ-,l- }kjk izekf.kr mRikn U;wure jk"Vªh; Lrj ij vo'; ekU; gksrk gSA vkbZ-,l-vks- izek.khdj.k izkIr djus ds óksr %& vkbZ-,l-vks- 9000 ds ekudksa dks ykxw djus ds fy, izekf.kr lykgdkj (Consultant) dh vko'drk gksrh gSA ;s lykgdkj laxBu ds dk;Zuqlkj 'kqYd ysrs gSaA ;s lykgdkj vUrjkZ"Vªh; xq.koRrk ekudksa ds vqulkj fo'k"k:i ls izf'kf{kr gksrs gSa rFkk blh ds vk/kkj ij lykgdkj ds :i esa izekf.kr gksrs gSaA eq[; izek.khdj.k laLFkk bUgha ds ek/;e ls vkbZ-,l-vks- 9000 iznku djrh gSA Hkkjr esa ,sls vusd lykgdkj miyC/k gSA

mRiknu izcU/k

fdlh Hkh mRiknu fØ;k esa ik¡p ^,e^ dk lkeatL; gksrk gS& eSu ¼O;fDr½] e'khu] eSVhfj;y ¼inkFkZ½ euh ¼/kuh½] ekdsZV ¼cktkj½ bu ik¡pksa dk lgh lapkyu vPNk izcU/kd gh dj ldrk gSA bu ik¡pksa ckrksa ds vykok nwljh ckrsa tks mRiknu ij izHkko Mkyrh gS] og gS mRiknu dk fMtkbu] dkj[kkus dh O;oLFkk] lkexzh dk izcU/k vkSj ns[kHkky vkfnA bu lcdks ge bl rjg ls Øe okj j[k ldrs gSaA 1. mRiknu dk fMtkbu 2. e'khu dk pquko o ns[kHkkyA 3. dkj[kkusa dh O;oLFkkA 4. eky dk izcU/kA 5. deZpkjh izcU/kA 6. ns[kHkky vkfnA 1. mRiknu dk fMtkbu fMtkbu pqurs lr; rhu ckrksa dk /;ku vkidks j[kuk gS %& ¼v½ fMtkbu ,slk gksuik pkfg, tks lqfo/kkiwoZd cu ldsA ¼c½ fMtkbu cukus ls lEcfU/kr lkexzh vklkuh ls miyC/k gksA ¼l½ mRiknu izfØ;k ljy gksA gks ldrk gS fd ,d fMtkbu esa lkjh ckrsa gks ysfdu yEcs le; ds nkSju og fMtkbu cukus esa ijs'kkuh gks] vr% bu lc ckrksa dk /;ku igys ls gh j[kuk pkfg,A 2. e'khu dk pquko o ns[kHkky vius m|ksx ds fy, izR;sd m|ksx o midj.k dk pquko ,oa [kjhnkjh djrs le; lEcfU/kr e'khu ds tkudkj dh enn vo'; ysaA e'khu fo'ks"k ls lEcfU/kr yksxksa dks gh e'khuksa dk pquko djuk pkfg,A gj ,d e'khu dks ns[kHkky dh t:jr gksrh gSA izfrfnu@lkIrkfgd@ifj{kd@ekfld@okf"kZd vko';drkuqlkj mudh lQkbZ ,oa ejEer dh tkuh pkfg,A fdlh VwV&QwV dks QkSju Bhd djkuk pkfg,A vki [kqn

Page 30: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

28

gh vUnktk yxkb;s fd dkSu&dkSu ls vfrfjDr iqtsZ vkids m|e dh e'khuksa ds j[k&j[kko gsrq vko';d gSaA bldh iwoZ O;oLFkk dj ysus ls vkidk le; cpsxk vksj e'khuksa dh dk;Z {kerk c<+sxhA 3. dkj[kkus dh O;oLFkk ,d gh LFkku esa e'khuksa dks dbZ izdkj ls j[kk tk ldrk gSA vkidks mRiknu dh izfØ;k dks /;ku esa j[krs gq, og rjhdk <wa<uk gksxk ftlls fd le; o ÅtkZ cp lds o lkeku dks b/kj ls m/kj j[kus esa fnDdr Hkh u gks vkidh bdkbZ esa iz;qDr izfr oxZ LFkku dh dher vkidks nsuh gksrh gSA vr% LFkku dk vf/kdre lnqi;ksx djuk pkfg;sA lHkh e'khu ,oa midj.k bl izdkj j[ks tkus tk;sa fd os de ls de LFkku ysa o dk;Z ljyrk ls gksa ldsA 4. eky dk izcU/k mRiknu ds fy, vkidks ftruh Hkh oLrqvksa dh vko';drk gksxh] mu lc dh ,d lwph cuk ysa ,oa mudh ek=kk o la[;k Hkh fu/kkZfjr dj ysaA blds ckn eky [kjhnus ls igys mldks j[kus ds fy, mfpr LFkku ,oa lkt&lkeku dh O;oLFkk dj ysaA ,sls lkekuksa ds fy, fo'ks"k izcU/k djsa ftuds [kjkc gksus dh rfud Hkh lEHkkouk gksA eky [kjhnrs le; mldh xq.koRrk dk vo'; [;ky j[ksaA mijksä lHkh ckrksa dk /;ku j[kus ds lkFk&lkFk vkidks bl ckr dk Hkh /;ku j[ku gksxk fd cktkj dh ek¡x ds vuqlkj vkids mRiknu dh iwfrZ gksrh jgsaA blds fy, lHkh vko';d dPps eky dk Hk.Mkj mfpr ek=kk esa mo'; gksuk pkfg,A vki lkejk dPpk eky lekIr gks tkus dk bUrtkj u djsa] cfYd ftruh ekl=kk esa eky yxrk tk;s mruh ek=kk esa eky vki [kjhnrs tk;saA bu lHkh NksVh&NksVh ijUrq egRoiw.kZ ckrksa dks /;ku esa j[ksaxsa rks vkidk mRiknu o m|ksx lQyrkiwoZd pyrk jgsxkA 5. le; izcU/k vkius Lo;a dks mRiknu dsd lHkh izcU/kksa ds fy, ekufld o HkkSfrd :i ls iw.kZr;k rS;kj rks dj fy;k gS] ysfdu D;k vki viuh ;kstuk dks iw.kZr;k ykxw ugha dj ik jgs gSa\ D;k vkids t:jh dke NwV tkrs gSa\ ;fn gk¡ rks lef>, fd ;g le; dk mfpr izcU/k u gksus ds dkj.k gSA vc vki ;g lef>, fd le; izcU/k D;k gS] ,oa izcU/k ds vUrxZr bldk D;k egRo gS\ le; dk vPNk izcU/k ,d m|e@O;olk; gsrq cgqr t:jh gS D;ksafd ,d fnu esa pkSchl ?kUVs gksrs gsa u rks vki cps le; dkds xksnke esa j[k ldrs gSA vkSj u gh le; dh deh gksus ij vki bls dgha ls [kjhn ldrs gSaA le; ds vPNs izcU/k ls vki og lHkh dke Bhd izdkj ls dj ldsaxs tks vki pkgrs gsaA vkids fy, le; ds izcU/k dh t:jr vkSj Hkh T;knk gsS D;ksafd vki ,d u;k dk;Z 'kq: dj jgs gSaA le; izcU/k mfpr u gksus ls& 1. vki vius dk;kZs dks izkFkfedrk ds vk/kkj ij ugha dj ikrs gSaA 2. dHkh&dHkh ;g lkspdj Hkh fd veqd dke vkidks tYnh djuk gS fQj Hkh vki og dk;Z le; ls ugha dj ikrsA 3. dHkh&dHkh vki Ø; egRoiw.kZ ckrksa ij T;knk /;ku nsrs gSaA vkSj egRoiw.kZ dke NwV tkrs gSaA 4. dHkh&dHkh vki fofHkUu dk;kZs ds fy, vius vki dks iwjh rjg ls rS;kj ugha dj ikrsA 5. vki dHkh&dHkh lksp ugha ikrs fd dkSu lk dke vkidks Lo;a djuik pkfg, vkSj dkSu lk dke nwljksa ls djokuk pkfg,A vkids lHkh dk;Z le; ,oa izkFkfedrk ds vuqlkj gksa blds fy, mfpr gksxk fd vki vius fy, ,d le; lkfg.kh cuk;sa yfdu le; lkfj.kh cukus ls igys vkiudks viuh xfrfrf/k;ksa dk v/;;u djuk gksxkA vr% vki de ls de rhu fnu esa fd;s x;s lHkh dk;kZas dks fy[k yhft;sA bruk djus ds ckn vki izkFkfedrkvksa ds vuqlkj vius dk;ksZ ds fy, le; lkfj.kh cukb;sA le; lkfj.kh cukrs le; vki vius dks vko';rkuqlkj cnfy, ,oa fuEu ckrksa dk /;ku jf[k;sA lcls igys izkFkfed dk;ksZ dks j[ksaA NksVs&NksVs dkeksa esa cgqr vf/kd le; u nsaA dksbZ vko';d ,oa egRoiw.kZ dk;Z bl lkfj.kh esa uksV djuk u HkwysaA vpkud dksbZX egRoiw.kZ dke vk tkus ij fdlh de egRoiw.kZ dke dh txg mldks igys djsa A le; chrus ds lkFk&lkFk izkFkfedrk,a Hkh cnyrh jgrh gSaA vr% gj g¶rs ;k iUæg fnu esa viuh izkFkfedrkvksa dk ewY;kadu djrs jgsa] ,oa mUgha ds vuqlkj le; lkfj.kh esa ifjorZu Hkh djrs jgsaA le; thou dh xfr gS bls O;FkZ er tkus nksA

Page 31: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

29

fu;kZrd dSls cusa fu;kZr gsrq opuc)rk] dqN lalk/kuksa] iawth rFkk mlds tksf[keksa ds ckjs esa ,d vPNh lw>cw> dh vko';drk gksrh gSA pfy, ns[ksa fd fu;kZr gS D;k\ ,d fu;kZrd fofuekZrk ¼,d fofuekZrk tks fd mRiknksa dks mRikfnd djrk gS vkSj fu;kZr djrk gS½ gks ldrk gS ;k O;kikjh fu;kZrd ¼,d O;fDr tks fd fofuekZrkvksa ls mRiknksa dh [kjhn dj fu;kZr djrk gS½ fu;kZr djuk^ Hkkjr esa fcØh djus tSlk gh gSA nksuksa ds ekSfyd dne yxHkx ,d tSls gh gS] vFkkZr~ mRikn ;k lsok dh fcØhA Hkkjr esa fcØh djus rFkk Hkkjr ds ckgj fu;kZr djus ds chp dwN izeq[k vUrj gS tSls fd izR;sd ns'k esa fu;kZrd miHkksäkvksa dks lh/ks fu;kZr u dj ^b.VjehfM;sV Iys;lZ^ ds ek/;e ls djrs gSaA lcls igys bl ;kstuk esa vnk;xh fds fy, eqæk&fofu;e dh t:jr gksrh gS] fofHkUu vnk;xh fof/k;ksa dk iz;ksx blesa gksrk gS] lkekU;r;k vkn;xh dh izkfIr vkids rFkk vk;krd ds ns'k esa cSadks }kjk fu/kkZfjr izfØ;k }kjk lapkfyr gksrh gSA blds vyko] vkidk mRikn varjkZz"Vªh; cktkj] ogka ds okrkoj.k ¼i;kZoj.k&tyok;q½ miHkksDrkdh :fp] ifjos'k bR;kfn ds vuqlkj ^mfpr^ gksuk pkfg,A blds vykok] fu;kZr djus esa izk;% ukS&ifjogu ds fy, vk;krd ns'k esa eky ds ches ds laca/k esa vfrfjDr ykxrsa 'kkfey gksrh gSaA fu;kZr ij lheh 'kqYd rFkk vk;kr djus okys ns'kksa ds dj Hkh ykxw gksrs gSaA fu;kZr djus esa D;k tksf[ke mRikn ds fu;kZr esa dbZ izdkj ds tksf[ke gsa] tSls fd] foÙkh; tksf[ke¼eky ds ukS&ifjogu ds ckn xSj&vnk;xh½] O;kikj tksf[ke] fof/kd tksf[ke ¼fofHkUu O;kikfjd fof/k;ksa rFkk fofu;eu ls lacf/kr½] jktuSfrd tksf[ke ¼jktuSfrd vfLFkjrk] vFkZ O;oLFkk uhfr esa izeq[k cnyko yk ldrh gS½] jk"Vªh;dj.k] oS;fDRo vf/kdkjksa dh deh] bR;kfnA Hkkoh fu;kZrd dks bu lHkh izdkj ds tksf[ke dks /;ku esa j[kuk pkfg, rFkk ,sls tksf[keksa dks de djus ds fy, mfpr dk;Zuhfr viukuh pkfg,A fu;kZr ds fy, ekdsZfVax ;kstuk fu;kZr djus esa nwljk dne ekdsZfVax ls lacaf/kr ;kstuk dks fodflr djuk gSA cgqr fons'kh ekdsZV Hkkj ds cktkj ls cgqr vyx gSA fHkUurkvksa ds eq[; dkj.kksa esa tyok;q rFkk i;kZoj.k] lkekftd rFkk laklÑfrd ifjos'k] dPps eky dh LFkkuh; miyC/krk] mRikn [kjhn djus dh {kerk esa varj] fons'kh eqæk dh miyC/krk rFkk ljdkjh vk;kr&uhfr bR;kfn 'kkfey gSA bu fHkUurkvksa dks le>dj fu;kZr gsrq ,d ekdsZV fjlpZ ij vk/kkfjr ;kstuk fu;kZrdksa dks mfpr ykHk iznku djrh gSaA fu;kZr ds fy, ekdZZsV fjlpZ vius mRikn dk lQyrkiwoZd fu;kZr djus ds fy, vkidks fons'kh cktkjksa ds v/;;u dh vko';drk gS rkfd fu;kZr djus ds voljksa rFkk ^ck/kkvksa^ dk irk yxkus ds lkFkk&lkFk Hkkoh [kjhnnkjksa rFkk miHkksDrvksa dk Hkh irk yxk;k tk ldsA ekdsZV fjlpZ ;g r; djus esa lgk;rk djrk gS fd dkSu ls fons'kh cktkj esa mRiknksa ds csgrj fu;kZr dh laHkkouk gSA ,d pj.kc) ekdsZV fjlpZ esa ewyr% Hkkoh cktkj dh LØhfuax] yf{kr cktkjksa dk ijh{k.k dj mfpr fu"d"kksZ ij igqapuk bR;kfn 'kkfey gSA blesa fu;kZr] vk;kr] ekax] vkadM+s] cktkj 'ks;j] ck/kk,a ¼VSfjQ rFkk ukWu VSfjQ½ fu;kZr gsrq Hkkjrh; rFkk fons'kh izksRlkgu] bR;kfn dk fo'ys'k"k.k 'kkfey gSA laca) vkadM+ksa dk fo'ys"k.k djus ds ckn gh ;g fu"d"kZ fudkyuk ljy gks tkrk gS fd fdlh fof'k"V mRikn ds fu;kZr ds fy, varjkZZ"Vªh; txr esa dkSu&dkSu ls mfpr ekdsZV gSaA fu;kZr ekdsZfVax izos'k gsrq dk;Zfufr;k¡ izR;sd pqus x;s ekdsZV esa izos'k ikus gsrq ,d fof'k"V dk;Zfufr viukus dh vko';drk gksrh gSA vki ,d fof'k"V dk;Zuhfr ds vHkko esa pqus x;s cktkj dh miyC/krk {kerk dk iwjk Qk;nk vius fu;kZr gsrq ugha mBk ldsaxs ;k vki ,slh xyfr;ka dj ldrs gSA tks vkidks egaxh iM+sA fu;kZr ekdsZV esa izos'k dk;Zfufr ds rgr pkj eq[; fcUnqvksa dks /;ku esa t:j j[kk tkuk pkfg,A 1. forj.k dk;Zuhfr mRikn forj.k dls fy, eq[; fodYi gS%& miHkksDrkvksa dkd lh/ks fcØhA ,tsaVksa ;k forjdksa ds ek/;e ls fcØhA fons'kh lsYl LVkWQ dh lsok,sa ysukA fons'kh lsYl vkQWlksa dh LFkkiukA

Page 32: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

30

fons'kh la;qDr miØe ;k NwVksa dh LFkkiukA ^LFkkuh; ,tsaVksa rFkk forjdksa^ ;k ^lh/ksfcØh^ dk izdkj vf/kdrj iz;ksx esa yk;k tkrk gSA 11. izpkj dh dk;Zuhfr ;fn vki igys ls fons'k esa ugha tkus tkrs gSa rks vkidks daiuh rFkk mlds mRiknksa ds izpkj djus dh vko';drk gksxhA lkeU;r% ftruk vki izpkj&izlkj djsaxs] mruk gh vf/kd vkids fu;kZr ij vuqddwy izHkko gksxkA vkidks yf{kr cktkjksa esa vius mRiknksa dks ifjfpr djokus ds laca/k esa izpkj&izlkj dh vko';drk gksxhA fons'k esa fodYi lkekU;r% ogh gS tks fd ?kjsyw rkSj ij gS& daiuh dk csctst] lh/ks i=kkpkj ¼fu;fer ;k bZ&esy½ VsyhekdsZfVsax] izsl fjyht] l'kqYd foKkiu] VsªM 'kks esa Hkkx ysuk rFkk lsYl nkSjs] fu;kZr Mk;jsDVªht esa lwphc) fd;k tkuk bR;kfnA III. ewY; fu/kkZj.k uhfr fu;kZr cktkj esa ftl ewY; ij vki viuk mRikn cspuk pkgrs gSa] mlesa vkn'kZ :i ls lHkh ykxrsa 'kkfey gksus ds lkFk&lkFk og izfrLi/kkZRed Hkh gksuh pkfg,A lkFk gh lkFk ;g [kjhnnkjksa dks vkdf"kZr djus okyh rFkk ykHk iznku djus okyh gksuh pkfg,A ;g t:jh ugha fd ,d cktkj ds fy, mi;qDr ewY; vU; cktkjksa esa Hkh lgh gksaA cktkj pkgs dqN Hkh gks] ewY; fu/kkZj.k izfØ;k ^mRiknu dh ewy bdkbZ ykxr^ ds llkFk 'kq: gksuh pkfg,A ykxr ls uhps ewY; r; djuk vkfFkZd :i ls le>nkjh ughsa gSSA tc vkius ,d ckj ewy bdkbZ ij ykxr r; dj yh gS] rks mlls vf/kd ewY; dk r; djuk cktkj ds viukus ij fuHkZj gS vFkkZr~ og ewY; ftls cktkj eatwj djsxkA lkekU;r% ;g cktkj fof'k"V xq.k tSls u;k vFkok ,dek=k ] Js"B xq.koRrk] czk.M vf/kekU;rk bR;kfn tSlh ckrksa ij vk/kkfjr gSA IV LFkkfud uhfr vf/kla[; ns'kksa esa Hkk"kk,a] lkaLÑfrd ewY;] :fp;ka] dkjksckjh i)fr;ka] vk;s Lrj] i;kZoj.k laca/kh fLFkfr;ka] mRiknu ekud] fof/kd vko';drk,a bR;kfn fHkUu gksrh gSaA bu lHkh ls izeq[k fcØh izHkkfor gksrh gSaA fofHkUu cktkjksa esa lQy gksus ds fy, vkidks mu ckrksa dk /;ku j[krs gq, vious mRiknu vFkok lsok dks LFkkuh; ?kVdksa ds vuq:i <kyuk gksxkA fons'kksa xzkgd cukuk laHkkfor ,oa u;s xzkgdksa dks fu;kZr djus ds fy, og vko';d gS fd vki vius Lo;a ds vuqHkoksa tks fd vkius fons'k Hkze.k d nkSjku izkIr fd, gSaA ;k vkids fons'kh izfrfuf/k;ksa us vkids fy, igpku fd, gSa] dh vksj /;ku bnsaA vki varjkZ"Vªh; O;kij esayksa esa Hkkx yss ldrs gSa] ftlesa vki varjkZ"Vªh; Øsrk&foØsrk cSBdksa esa Hkh Hkkx ys ldrs gSa] blls vkidks Øsrkvksa d lkFk vf/kd O;fDrxr fopkj&foe'kZ dk volj feysxkA vki vk;krd funsZf'kdk ls izeq[k vk;krdksa ds irs ,oa laidZ laca/kh O;kSjk izkIr dj ldrs gSaA baVjusV lfQZax] VsªM eSxthu dh Hkh lgk;rk yh tk ldrh gSA ijarq bu lwpuvksa sdk 'khZ?kzrk ls vuqlj.k djus dh vko';drk gksxhA fons'kh xzkgd dh igpku djus ds vU; óksr] fu;kZr lac/kZu ifj"knksa] deksfMVh cksMZ] Mh-th-lh-vkbZ-,.M,l-] Hkkjrh; nwrkoklksa esa okf.kfT;d izfrfuf/k] mPpk;ksx] pSEclZ vkWQ dkWelZ ,.M VsªM] lh vkbZ vkbZ] ,lkspSe] fQDdh bR;kfn tSls laa/k gks ldrs gSa lqiqnZxh gsrq eky dks rS;kj djuk fons'kksa esa eky Hkstus ds fy, vkidks ;g bs[k ysuk pkfg, fdd mRiknu dh ukS&ifjogu ls iwoZ iSfdax] yscy] nLrkost lgh gSA vkSj mldk chek djok fy;k x;k gSA blesa ls dqN rS;kfj;ka eky dks [kjkc gksus] pksjh gksus vFkok ukS&ifjogu esa foyac gksus ds laca/k esa lqj{kk iznku djus ds fy, gSA leqæh ukS&ifjogu ds fy, tgka rd laHko gks vius eky dks dUVsuj esa HkstsaA O;kikj vko';drkvksa dks iwjk djuk % fu;kZrd cuus ds fy, ewy vko';drk vk;krd&fu;kZrd dksM¼vkbZ bZ lh½ la[;k izkIr djuk gSA vkbZ bZ lh ds cfuk dksbZ Hkh O;fDr fu;kZr vFkok vk;kr ugha dj ldrk gS c'krsZ fd mls fo'ks"k :i ls NwV u nh xbZ gksA vkbZ bZ lh dksM dh izkfIr fons'k O;kikj egkfuns'kky; ¼Mh th ,Q Vh½ dh fof'k"V izfØ;k ds vuqlkj vkosnu djus ij dh tk ldrh gSA dksbZ Hkh fu;kZrd vkbZ bZ lh ^lhek la[;k izkIr djus ij ik=k cu tkrk gSA vius eky dk fu;kZr vko';d gS] ftlds fy, dbZ nLrkrst t:jh gSA fof'k"V mRikn ds fu;kZ rd fy, ljdkj dbZ izksRlkgu Hkh nsrh gSA lHkh vko';drkvksa] dkuwuh vkSipkfjdrkvksa ,oa izfØ;kvksa dh iwjh tkudkjh gsrq vkidks Mh th ,Q Vh }kjk izdkf'kr ^fons'k O;kikj uhfr^] ^izfØ;kvksa dh gLr&iqfLrdk ¼[k.M-1½^ rFkk ^vkbZ Vh lh ¼,p ,l½ vk;kr ,oa fu;kZr oxhZdj.k^ iqLrd ds uohure vadks dks i<+uk pkfg,] tks mudh osollkbV http://dgft.delhi.nic.in ij Hkh miyC/k gSA fu;kZr ,oa vk;kr ij dksbZ ikoanh ugha gS] fook, mu ekeyksa ds tgka mudh fons'kh eqæk xfrfof/k;ksa fofu;fer gksrh gsA enokj fu;kZr ,oa vklkr uhfr dks vkbZ Vh lh ¼,p- ,l-½ iqLrd esa frfufnZ"V fd;k x;k gSA ;fn vki Hkh mu ykHkksa dks ikuk pkgrs gSa tks ifj"kn@izkf/kdj.k rFkk ljdkj }kjk lnL;ksa dks fn, tkrs gS] rks vki dks lacaf/kr ifj"kn@izkf/kdj.k ds lnL; ds :i esa iathÑr gksuk pkfg,A

Page 33: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

31

fu;kZr dks ljy cukuk ek=k HkkM+k QkjoMZj fu;kZr nLrkost ,oa ukS&ifjogu vko';drkvksa dk vuqikyu djus gsrq fu;kZrd ekyHkkM+k QkjoMZj dks vius ,tsUV ds :i esa fu;qfDr dj mudh lsokvksa dks izkIr dj ldrs gSaA ,d varjkZ"Vªh; ekyHkkM+k QkjokMZj og gsS] tks fdlh leqæikj ns'k dks eky Hkstus dk dke djrk gSA ;s ,tsUVksa fons'kksa d fu;kZr fu;esks ,oa fofu;eksa] Hkkjr ljdkj ds fu;kZr fu;eksa] ukS&ifjogu ds <ax rFkk fons'k O;kikj ls lacaf/kr nLrkost ds tkudkj gksrs gSa bLrkost] vko';drkvksa] fou;eksa ifjogu ykxr rFkk cSad laca/kh i)fr;ksa ds ckjsa esa QkjoMZj ds ikl miyC/k tkudkjh ls fu;kZr izfØ;k ljy gks tkrh gSA ekyHkkM+k QkjoMZj ykxr] iRru izHkkj] fo'ks"k nLrkost dh ykxr] chek ykxr rFlkk lapkyu 'kqYdksa ds laca/k esa mfpr ijke'kZ iznku dj fu;kZrdksa ds fy, mfpr ewY; nj fu/kkZfjr djus esa lgk;rk iznku dj ldrs gSaA ekyHkkM+k QkjoMZj dh lsok,a ,d tk;t ykxr gS ftls fu;kZrd dks vius mRikn ds ewY; esa 'kkfey djuk pkfg,A ekyHkkM+k QkjoMZj fcy vkWQ ykSfaMax rFkk vU; t:jh nLrkost Hkh rS;kj dj ldrs gSaA rFkk ukSogu ds ckn os nLrkost dks foØsrk &Øsrk vFkok vnk djus okys cSad dks Hkst ldrs gSaA ekyHkkM+k QkjoMZj fons'kksa esa dLVe czksdj ds lkFk O;oLFkk dj ldrs gSa ftlesa fd ;g lqfuf'pr fd;k tk lds fd eky lhek&'kqYd fu;kZr nLrkost ds laca/k esa dbZ izdkj dh vkSipkfjdrkvksa dks Lo;a u iwjk dj mudh lgk;rk izkIr dj busd dfBukb;ksa ls cp ldrs gSa eky dk fu;kZr djus dd ckn vnk;xh izkIr djuk eky jokuk gksus dsckn vkidks vnk;xh izkIr djus ds ckjs esa lquf'fpr gksuk pkfg,A blds fy, vkidks fu;kZr laca/kh ysu&nsuksa ds fy, iz;qDr fd, tkus okys vnk;xh <ax dh tkudkjh gksuh pkfg,A ;s ?kjsyw rhj ij iz;qDr rjhdksa ls vyx gksrs gSaA vkSj dqN rjhdsa nwljksa dh vis{kk tksf[ke okys gSaA fons'kh Øsrk vk'kk djrs gSa fd os eky igaqpus vFkok mlds ckn vnk;xh djsaA dsoy dqN gh fons'kh Øsrk vfxze vnk;xh djuk pkgsaxsA varjk"Vªh; O;kikj ysus&nsus esas nLrkost dh LohÑfr (Document against acceptance-D.A), vnk;xh ij nLrkost (Document a gainst payment-D.P.), lk[k i=k ¼ysVj vkWQ ØsfMV½ dk lkekU;r% fu;kZr vnk;xh esa iz;ksx gksrk gSA ysVj vkWQ ØsfMV ds }kjk cSad vkidks vnk;xh djrk gS ftlds fy, cSad vk;krd ls Lora=k :i ls dqy vk;kr dk ewY; izkIr djrk gSA ysVj vkWQ ØsfMV nks izdkj ds gksrs gSA igyk ftlesa nLrkrstksa dh izLrqfr ij rqjar Hkqxrku vkSj nwljk le; ,oa fnukad ij vk/kkfjr ysVj vkWQ ØsfMV ftlesa Hkqxrku fdlh Hkkoh frfFk ij fd;k tkr gSA ysVj vkQW ØsfMV dh lHkh 'krksZ dks iwjk djuk egRoiw.kZ gSA vkidks ysVj vkQW ØsfMV dh /;kuiwoZd leh{kk djuh pkfg, vkSj ;g lqfuf'pr djuk pkfg, fd ewY; ,oa 'krsZ ogh gSa] ftu ij nLrkost esa lgefr O;Dr dh xbZ gSA vxj ,slk ugha gS rks cvSa vnk;xh ugha dj ldrk gSA cSad Hkh jf'k dh vnk;xh] ysVj vkWQ ØsfMV ds vuqlkj gh djsxk] pkgs ukS&ifjogu] chek vFkok vU; ckrksa ds fy, vis{kkÑr mPp izHkkj fyf[kr :i esa vU; nLrkost esa fn, x, gksaA ;fn ysVj vkWQ ØsfMV dh 'krksZa dks iwjk u fd;k tk ldrk gks vFkok blesa =kqfV;ka gks vFkok o.kZ dh v'kqf) gks] rks vkidks rRdky Øsrk ls laidZ djuk pkfg,A vkSj leL;k dks nwj djus dsd fy, ysVj vkWQ ØsfMV esa la'kks/ku ds fy, dguk pkfg,A vnk;xh ikus ds fy, vkidks fyf[kr rd eky dks ukS&ifjogu fd;k x;k gSA ekyHkkM+k Hkstus okys ukS&ifjogu esa gksus okys laHkkfor foyac dh vlkekU; ifjLFkfr;ksa ds ckjs esa lykg ns ldrs gSA cSad lykg ns ldrs gSa fd D;k izLrqfrdj.k dh vafre rkjh[k dks iwjk djus ds fy, i;kZIr le; gSA vkidks lnSo ;g vuqjks/k djuk pkfg, fd ysVj vkWQ ØsfMV esa vkaf'kd ukS&ifjogu dh LohÑfr dk mYys[k gksA blls vafre le; ij izR;kf'kr leL;kvksa ls cpk tk ldsxkA laLFkkxr lgk;rk fodkl vk;qDr ¼,e,l,ebZ½ dk dk;kZy; lw{e] y?kq ,oa e/;e m|eksa ¼,e,l,ebZ½ ds lac/kZu ,oa fodkl d fy, dsaæhr ljdkj ds Loj ij ,d uksMy vfHkdj.k ¼,tsalh½gSA fu;kZr izpkj&izlkj ds {ks=k esa y?kq m|eksa gsrq blds ikl dqN ;kstuk,a gSa & vFkkZr~ varjkZ"Vªh; iznf'kZfu;ksa esa Hkkx ysus] mRiknuksa dh ckj&dksfMax] fu;kZrksa esa iSdsftax d fy, izf'k{k.k bR;kfn ds fy, foÙkh; lgk;rkA fodkl vk;qDr ¼,e,l,ebZ½ dk dk;kZy;] DyLVj vk/kkfjr fodkl gsrq lgk;rk] izkS|ksfxdh ,oa xq.koÙkk mUu;uhdj.k lgk;rk] m|ferk ,oa izca/kdh; fodkl gsrq foi.ku lgk;rk rFkk vU; lgk;rk Hkh iznku djrk gSA bu ;kstukvksa@ dk;ZØeksa dk fooj.k osclkbV www.dcmsme.gov.in/ www.msmediagra.gov.in ij miyC/k gSA

Page 34: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

32

Assembling the PC After buying all the computer components they must be put together. This process is called assembling. It usually takes about fifteen minutes(installing not included). Although easy, it must be done carefully so as to avoid unnecessary damage to the system.

Materials Required

Make sure that you have all the below materials before starting.

1. All the necessary components(Although the all the below components are preferable, not all are necessary. Then necessary ones are marked with a *)

- Processors * - Motherboard * - Hardisk * - RAM * - Cabinet * - Floppy Drive * - CD Drive * - Cards - Display Card (Not needed if On-board display is available on Motherboard) - Sound Card (Not needed if On-board sound is available on Motherboard) - Modem - Other Cards(If Any) - Monitors * - Keyboard * - Mouse * - Speakers - UPS - Other Components(If Any) - Also keep the cables that came with thee components close by

2. Philips head Screwdriver (Or Star Screwdriver) 3. Flat head Screwdriver 4. Forceps (for pulling out jumpers and screws) 5. Magnatized Screwdriver 6. Multi meter (Testing)

Required Environment

Make sure that the following things are true of the room in which the computer is assambled/kept.

• Make sure that a flat surface of a good area is available when the system is assembled. Make sure that the room has enough space to move.

• See that the place where the Computer is kept is dust free as dust can harm the system. • Make sure that the room has good ventilation and won't be very hot. • Check the grounding in the plug to make sure that earthing is done properly.

Precautions

Before Starting the actual assembly of the PC System, the following precautions would help you to avoid any mishap during the assembly process:

• While the motherboard has to be fitted at a fixed place inside the PC cabinet, the locations of add-on cards (as and when used) and the drivers (hard disk drive, floppy disk drive, and CD-ROM drive) within the drivers bay of the cabinet can be changed within certain limits. But it is better to place them far away from each other. (The length of the cable provided for interconnections to the motherboard has to be taken into account, as there must be some slack after these are installed

Page 35: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

33

and connected.) This will improve the cooling and reduce the chance of electro-magnetic interference between them.

• The motherboard contains sensitive components, which can be easily damaged by static electricity. Therefore the motherboard should remain in its original anti static envelope until required for installation. The person taking it out should wear an anti static wrist strap that is properly grounded. In the absence of a proper wrist strap, you must make one on your own, using a peeled of multi-stranded copper cable and ground it properly. Similar handling precaution are also required for cards.

• Be sure to handle all the components with great care. If a small thing like a screw is dropped on the MB, it can damage the delicate circuitry, rendering the MainBoard useless.

Procedure

Installing Motherboard

You need to determine if the case has the appropriate risers installed. Risers, or spacers, keep the motherboard from touching the metal surfaces of the case after it is installed, avoiding a short-circuit and a wrecked computer. Any new case will include some form of riser, metal or plastic. See the picture on Side for typical examples. They may or may not be pre-installed into the case. Keep the cabinet panel on the table and fix the motherboard on it. A gentle pressure is enough to mount the Motherboard on it. There will be a mechanism to lock the motherboard in place. Identify its working and mount the motherboard accordingly. Tighten the screws on the motherboard to the panel.

Fixing the Processor

Now gently lower the CPU into the ZIF(Zero Insertion Force) Socket. No pressure is required. If the CPU is placed properly, it will slide into the socket. Make sure that the Number 1 pin is placed correctly. If you cannot get the CPU to sit evenly DO NOT force it. After placing the CPU, lock the socket using the Locking lever.

Page 36: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

34

Apply the IC paste that comes with the processor to the bottom of the heatsink. Only a thin layer is necessary. This lets the heat that is produced in the processor to be conducted to the heatsink which cools it. After applying the paste, fix the heatsink on the processor. Make sure that the locks of the heat sink are in place.

Installing RAM

Keep the RAM module in the slot in the proper way and press downwards. Be careful not to jerk the RAM while pushing it down. See that the lock get hold of the RAM and stay in the locked position. The ways of inserting the RAM will vary with different kinds of RAM. There are different kinds of RAM like SDRAM, DDRAM, RDRAM, etc. Please refer to the section on RAMS for more details.

DIFFERENT KINDS OF MEMORY Some people like to know a lot about the computer systems they own - or are considering buying - just because. They're like that. It's what makes them tick. Some people never find out about their systems and like it that way. Still other people - most of us, in fact - find out about their systems when they have to - when something goes wrong, or when they want to upgrade it. It's important to note that making a choice about a computer system - and its memory features - will affect the experience and satisfaction you derive from the system. This chapter is here to make you smarter about memory so that you can get more out of the system you're purchasing or upgrading. MODULE FORM FACTORS The easiest way to categorize memory is by form factor. The form factor of any memory module describes its size and pin configuration. Most computer systems have memory sockets that can accept only one form factor. Some computer systems are designed with more than one type of memory socket, allowing a choice between two or more form factors. Such designs are usually a result of transitional periods in the industry when it's not clear which form factors will gain predominance or be more available. SIMMS The term SIMM stands for Single In-Line Memory Module . With SIMMs, memory chips are soldered onto a modular printed circuit board (PCB), which inserts into a socket on the system board. The first SIMMs transferred 8 bits of data at a time. Later, as CPUs began to read data in 32-bit chunks, a wider SIMM was developed, which could supply 32 bits of data at a time. The easiest way to differentiate between these two different kinds of SIMMs was by the number of pins, or connectors. The earlier modules had 30 pins and the later modules had 72 pins. Thus, they became commonly referred to as 30-pin SIMMs and 72-pin SIMMs. Another important difference between 30-pin and 72-pin SIMMs is that 72-pin SIMMs are 3/4 of an inch (about 1.9 centimeters) longer than the 30-pin SIMMs and have a notch in the lower middle of the PCB. The graphic below compares the two types of SIMMs and indicates their data widths.

Page 37: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

35

4-1/4" 72-Pin SIMM

3-1/2" 30-Pin SIMM

Comparison of a 30-pin and a 72-pin SIMM

DIMMS Dual In-line Memory Modules, or DIMMs, closely resemble SIMMs. Like SIMMs, most DIMMs install vertically into expansion sockets. The principal difference between the two is that on a SIMM, pins on opposite sides of the board are "tied together" to form one electrical contact; on a DIMM, opposing pins remain electrically isolated to form two separate contacts. DIMMs come in various form factors and are specific to different DRAM technologies. 168-pin DIMM: EDO and PC66/100/133 SDRAM 184-pin DIMM: DDR 200/266/333/400 DDR SDRAM 240-pin DIMM: DDR2 400/533/667/800 DDR-2 SDRAM DIMMs transfer 64 bits of data at a time and are typically used in computer configurations that support a 64-bit or wider memory bus. Some of the physical differences between DIMMs and 72-pin SIMMs include: the length of module, the number of notches on the module, and the way the module installs in the socket. Another difference is that many 72-pin SIMMs install at a slight angle, whereas DIMMs install straight into the memory socket and remain completely vertical in relation to the system motherboard. The illustration below compares a 168-pin DIMM to a 72-pin SIMM.

4-1/4" 72-Pin SIMM

5-1/4" 168-Pin DIMM

Comparison of a 72-pin SIMM and a 168-pin DIMM.

SO DIMMs A type of memory commonly used in notebook computers is called SO DIMM or Small Outline DIMM. The principal difference between a SO DIMM and a DIMM is that the SO DIMM, because it is intended for use in notebook computers, is significantly smaller than the standard DIMM. The 72-pin SO DIMM is 32 bits wide and the 144-pin SO DIMM is 64 bits wide. 144-pin and 200-pin modules are the most common SO DIMMs today.

Page 38: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

36

2.35" 72-pin SO DIMM 2.66" 144-Pin SO DIMM

Comparison of a 72-pin SO DIMM and a 144-pin SO DIM M.

MicroDIMM (Micro Dual In-Line Memory Module) Smaller than an SO DIMM, MicroDIMMs are primarily used in sub-notebook computers. MicroDIMMs are available in 144-pin SDRAM, 172-pin DDR and 214-pin DDR2. RIMMS AND SO-RIMMS RIMM is the trademarked name for a Direct Rambus memory module. RIMMs look similar to DIMMs, but have a different pin count. RIMMs transfer data in 16-bit chunks. The faster access and transfer speed generates more heat. An aluminum sheath, called a heat spreader , covers the module to protect the chips from overheating. A 184-pin Direct Rambus RIMM shown with heat spreaders pulled away.

An SO-RIMM looks similar to an SO DIMM, but it uses Rambus technology.

A 160-pin SO-RIMM module. FLASH MEMORY Flash memory is a solid-state, non-volatile, rewritable memory that functions like RAM and a hard disk drive combined. Flash memory stores bits of electronic data in memory cells, just like DRAM, but it also works like a hard-disk drive in that when the power is turned off, the data remains in memory. Because of its high speed, durability, and low voltage requirements, flash memory is ideal for use in many applications - such as digital cameras, cell phones, printers, handheld computers, pagers, and audio recorders.

Flash memory is available in many different form factors, including: CompactFlash, Secure Digital,

Page 39: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

37

SmartMedia, MultiMedia and USB Memory PC CARD AND CREDIT CARD MEMORY Before SO DIMMs became popular, most notebook memory was developed using proprietary designs. It is always more cost-effective for a system manufacturer to use standard components, and at one point, it became popular to use the same "credit card" like packaging for memory that is used on PC Cards today. Because the modules looked like PC Cards, many people thought the memory cards were the same as PC Cards, and could fit into PC Card slots. At the time, this memory was described as "Credit Card Memory" because the form factor was the approximate size of a credit card. Because of its compact form factor, credit card memory was ideal for notebook applications where space is limited. PC Cards use an input/output protocol that used to be referred to as PCMCIA (Personal Computer Memory Card International Association). This standard is designed for attaching input/output devices such as network adapters, fax/modems, or hard drives to notebook computers. Because PC Card memory resembles the types of cards designed for use in a notebook computer's PC Card slot, some people have mistakenly thought that the memory modules could be used in the PC Card slot. To date, RAM has not been packaged on a PCMCIA card because the technology doesn't allow the processor to communicate quickly enough with memory. Currently, the most common type of memory on PC Card modules is Flash memory. On the surface, credit card memory does not resemble a typical memory module configuration. However, on the inside you will find standard TSOP memory chips. TECHNOLOGY TIMELINE This section presents the most common memory technologies used for main memory: This road map offers an overview of the evolution of memory.

YEAR INTRODUCED TECHNOLOGY SPEED LIMIT

1987 FPM 50ns

1995 EDO 50ns

1997 PC66 SDRAM 66MHz

1998 PC100 SDRAM 100MHz

1999 RDRAM 800MHz

1999/2000 PC133 SRAM 133MHz (VCM option)

2000 DDR SDRAM 266MHz

2001 DDR SDRAM 333MHz

2002 DDR SDRAM 434MHz

2003 DDR SDRAM 500MHz

2004 DDR2 SDRAM 533MHz

2005 DDR2 SDRAM 800MHz

2006 DDR2 SDRAM 667 - 800MHz

2007 DDR3 SDRAM 1066 - 1333MHz MAJOR CHIP TECHNOLOGIES It's usually pretty easy to tell memory module form factors apart because of physical differences. Most module form factors can support various memory technologies so, it's possible for two modules to appear to be the same when, in fact, and they’re not. For example, a 168-pin DIMM can be used for EDO, Synchronous DRAM, or some other type of memory. The only way to tell precisely what kind of memory a module contains is to interpret the marking on the chips. Each DRAM chip manufacturer has different markings and part numbers to identify the chip technology. FAST PAGE MODE (FPM) At one time, FPM was the most common form of DRAM found in computers. In fact, it was so common that people simply called it "DRAM," leaving off the "FPM". FPM offered an advantage over earlier memory technologies because it enabled faster access to data located within the same row.

Page 40: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

38

EXTENDED DATA OUT (EDO) In 1995, EDO became the next memory innovation. It was similar to FPM, but with a slight modification that allowed consecutive memory accesses to occur much faster. This meant the memory controller could save time by cutting out a few steps in the addressing process. EDO enabled the CPU to access memory 10 to 15% faster than with FPM. SYNCHRONOUS DRAM (SDRAM) In late 1996, SDRAM began to appear in systems. Unlike previous technologies, SDRAM is designed to synchronize itself with the timing of the CPU. This enables the memory controller to know the exact clock cycle when the requested data will be ready, so the CPU no longer has to wait between memory accesses. SDRAM chips also take advantage of interleaving and burst mode functions, which make memory retrieval even faster. SDRAM modules come in several different speeds so as to synchronize to the clock speeds of the systems they'll be used in. For example, PC66 SDRAM runs at 66MHz, PC100 SDRAM runs at 100MHz, PC133 SDRAM runs at 133MHz, and so on. Faster SDRAM speeds such as 200MHz and 266MHz are currently in development. DOUBLE DATA RATE SYNCHRONOUS DRAM (DDR SDRAM) DDR SDRAM, is a next-generation SDRAM technology. It allows the memory chip to perform transactions on both the rising and falling edges of the clock cycle. For example, with DDR SDRAM, a 100 or 133MHz memory bus clock rate yields an effective data rate of 200MHz or 266MHz. Click here for more on DDR. Click here for more on DDR. DOUBLE DATA RATE 2 SYNCHRONOUS DRAM (DDR2 SDRAM ) DDR2 is the second generation of Double Data Rate (DDR) SDRAM memory. It is an evolution of DDR memory technology that delivers higher speeds (up to 800 MHz), lower power consumption and heat dissipation. It is an ideal memory solution for bandwidth hungry systems and the lower power consumption is a perfect match for today's mobile users. Click here for more on DDR2. DOUBLE DATA RATE 3 SYNCHRONOUS DRAM (DDR3 SDRAM) DDR3 is the third generation of Double Data Rate (DDR) SDRAM memory. Similar to DDR2, it is a continuing evolution of DDR memory technology that delivers higher speeds (up to 1600 MHz), lower power consumption and heat dissipation. It is an ideal memory solution for bandwidth hungry systems equipped with dual and quad core processors and the lower power consumption is a perfect match for both server and mobile platforms. DDR3 modules will be available in the second half of 2007. DIRECT RAMBUS Direct Rambus is a DRAM architecture and interface standard that challenges traditional main memory designs. Direct Rambus technology is extraordinarily fast compared to older memory technologies. It transfers data at speeds up to 800MHz over a narrow 16-bit bus called a Direct Rambus Channel. This high-speed clock rate is possible due to a feature called "double clocked," which allows operations to occur on both the rising and falling edges of the clock cycle. Also, each memory device on an RDRAM module provides up to 1.6 gigabytes per second of bandwidth - twice the bandwidth available with current 100MHz SDRAM. In addition to chip technologies designed for use in main memory, there are also specialty memory technologies that have been developed for video applications. MEMORY TECHNOLOGIES FOR VIDEO OR GRAPHICS PROCESSING VIDEO RAM (VRAM) VRAM is a video version of FPM technology. VRAM typically has two ports instead of one, which allows the memory to allocate one channel to refreshing the screen while the other is focused on changing the images on the screen. This works much more efficiently than regular DRAM when it comes to video applications. However, since video memory chips are used in much lower quantities than main memory chips, they tend to be more expensive. So, a system designer may choose to use regular DRAM in a video subsystem, depending on whether cost or performance is the design objective. WINDOW RAM (WRAM)

Page 41: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

39

WRAM is another type of dual-ported memory also used in graphics-intensive systems. It differs slightly from VRAM in that its dedicated display port is smaller and it supports EDO features. SYNCHRONOUS GRAPHICS RAM (SGRAM) SGRAM is a video-specific extension of SDRAM that includes graphics-specific read/write features. SGRAM also allows data to be retrieved and modified in blocks, instead of individually. This reduces the number of reads and writes that memory must perform and increases the performance of the graphics controller by making the process more efficient. BASE RAMBUS AND CONCURRENT RAMBUS Before it even became a contender for main memory, Rambus technology was actually used in video memory. The current Rambus main memory technology is called Direct Rambus. Two earlier forms of Rambus are Base Rambus and Concurrent Rambus. These forms of Rambus have been used in specialty video applications in some workstations and video game systems like Nintendo 64 for several years.

Connections

Next, affix the cables that are provided to the necessary places on the motherboard. The cables and the place to fix them are given. Be careful to fix the cables properly and not damaging the pins or the motherboard in the process. Make sure that the red part of the IDE cables (the no 1 pin) is in proper position.

These are the list of cables that needed to be connected to the motherboard...

Name of Cable Device connector of... No of Pins

IDE Hardisk, CD-ROM 40

Floppy IDE Floppy Drive 34

Power Cable For Motherboard

From SMPS to Motherboard 6x2 in AT and 20 in ATX

Front Panel Display Speaker, HDD Indicator LED, Power LED, Restart Different for each

Backside Connections PS/2, USB, LPT, COM 1, COM 2, etc. Different for each

Card Connectors CDROM Audio cable, Onboard display to backside cable, etc Different for each

Besides the cables that are shown here there are other cables like Processor Fan power supply, Power supply for devices like HDD, FDD, CD-ROM etc which are not connected to Motherboard, etc. All must be connected properly.

Pin Configuration on Motherboard There are many places to fix cables in the motherboard. The following are the pin numbers for all the slots on the motherboard.

Device/Slot Name No of pins

LPT 26 COM 10 IDE 40 IDE Floppy 36

Page 42: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

40

Now fix the motherboard to the Cabinet or the Case. Place your mother board inside the case and fasten it in. Every Case fastens mother boards in different ways. Some use plastic pegs, some use metal screws. See Picture for an example

Their might be metal coverings covering the holes in the computer case were the parallel ports and serial ports on the mother board should poke through. Poke those out with a screw drive so you can fit the mother board in snuggly. Make sure that all the connectors that come out of the motherboard is in its correct places on the back.

Expansion Cards

Now the expansion cards must be inserted. Insert your Video Card if it is not onboard. There are presently about 3 different forms of slots on your mother board - PCI, ISA, and AGP. Video Cards are presently made for all 3 of them. AGP stands for "Accelerated Graphics Port" Video Cards made for this slot are generally more high tech/performance. AGP slots more than likely is the only small, brown, slot on your mother board. PCI you probably have the most of these their white and little longer than AGP. ISA, these are long and black. Insert your Video Card and snug it in there firmly. Make sure that the other side of the card can be come out of the motherboard's backside. Screw the card in that place. Similar fit the other cards in its respective places.

Floppy Drive

Ensure that one of the 3.5-inch bays in your case is open. If your case came with rails for the floppy drive, attach them to the sides of the drive and slide the drive into the front of the computer until it clicks into place. Rails are small metal pieces which clip or screw on to the sides of the drive and allow it to be inserted and removed from the case with minimal effort. Otherwise, slide the drive into the front of the computer until the faceplate of the floppy drive is flush with the front bezel of the case and the screw holes along the side of the drive line up with the case. When everything lines up, screw the floppy drive in securely on both sides. Plug in the power cable (see picture to left) carefully, since it is quite possible to miss one of the connectors,

Page 43: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

41

which will quite possibly cause some damage when the computer is powered on. Floppy drive power connectors are keyed in most cases, but if not, the red wire should be connected to the pin designated as 1 on the surrounding PCB.

Ensure that the power connector is correctly lined up with all 4 connectors. The floppy (data) cable is keyed to only fit one way. Note that it is keyed the opposite way to the IDE hard drive and CD drive, so that the red stripe on the cable should be facing the floppy drive power cable. Floppy drive cables(IDE) are solid ribbon on one end, and the other has a small section of the ribbon cut and twisted around. Ensure you only attach the floppy cable as shown in the picture to the right.

Installing Hardisk

Ensure that the hard drive is set up to be the master drive on its IDE cable. Each IDE cable can support up to two IDE devices, such as hard-drives, CD-drives, Zip Drives, etc., but in order for this to work, one IDE device must be designated as a master device, and one must be designated as a slave device. You cannot have two master devices or two slave devices on a single cable. This must be later configured in the BIOS.

Examine the top of your hard-drive. There should be a chart there depicting the necessary jumper settings to make the drive a master or slave device. Otherwise, the chart will be somewhere on the body of the drive. The set of jumpers will be on the back end of the drive. Ensure that they are set correctly to enable the drive as a master. You may need a set of tweezers to move the jumpers. Insert the hard drive into the 3.5" drive-tray and screw it in securely on both sides.

Installing Optical Drive (DVD/CDROM)

Ensure that at least one full sized 5.25" bay is open in the case. Examine the jumper settings on the top of the drive, as you did with the hard-drive. Ensure that the drive is set to 'master'. If your case came with rails, screw them to the sides of the CD drive and insert it into the front of the case until it clicks into place. Otherwise, slide the drive into the front of the computer until the faceplate of the drive is flush with the front bezel of the case and the screw holes along the side of the drive line up with the case. Then, screw it in securely on both sides. Attach the power cable (same as the hard-drive power cable) to the drive. Attach your secondary IDE cable to the drive. Note that generally this should be a regular 40-wire IDE cable, not the 80-wire UDMA IDE cable that is used for the hard-drive. Some DVD drives will use the 80-wire cable, however. Set the jumper on the CD-ROM drive. Here you have a choice. You can either:

• Attach the CD-ROM to IDE connector 1 and make the CD-ROM a slave. In this case, you will set the jumper on the CD-ROM to "Slave" and attach the CD-ROM drive to the same IDE cable as the hard drive. Or,

• Attach the CD-ROM to IDE connector 2 and make the CD-ROM a master.

Page 44: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

42

In this case you will set the jumper on the CD-ROM to "Master" and attach the CD-ROM drive with a separate cable to IDE slot 2. In order to use this method, you will need a second IDE cable.

Connect the Sound Cable of the CDROM to the Sound Card so that the Audio CDs can work properly.

Power Supply

There are two main kinds of motherboards and Cabinets available today with reference to Power Supply - AT and ATX. The have different connectors. They are shown below. These wires come from the SMPS of the Cabinet. The figure on the right shows the Power cables coming out of the SMPS.

Different Types on Power Supply Connectors

Power Spply Type ATX AT No Of Pins 20 2x6 (12)

Picture

Power Connections

Identify the type of power supply and insert it into the right place. The AT cables must be connected in such a way that the black cables of both plugs should be facing each other (See Figure to the left).

Final Connections in the Cabinet Connect the wires coming out from behind the face of your computer case to your mother board. They control the on, off, reset, hard disk activity, and power switch. Every mother board is different (See picture to the right). Refer the manual with your mother board. Most specify with 2 or 3 character paraphrases like "PWR SWT" which means Power Switch and "RST SWT" which means Reset Switch, etc.

Page 45: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

43

Closing the Cabinet

After all the connections are made inside the Cabinet, double-check all the wiring. Make sure all connections are firmly attached, and ensure that no wires are running close to the top of the CPU heat sink fan. Then close the cabinet and screw it tight. Set it in an upright position(assuming it is a tower type cabinet).

Connecting other peripherals

Now plug the data cable of the monitor to the display card. It will be marked on the back of the cabinet. If not, refer the manual to see where it is. Connect Keyboard, Speakers, Mouse to the back of the cabinet in the correct places. See that the Mouse is connected properly. If it is a PS/2 Mouse it must be connected to the PS/2 port. If it is a USB mouse, USB port must be used. Similarly for the COM mouse. Connect all other peripherals that you may have like Printer, External Modem, UPS, etc. to the back of the cabinet in their respective places.

Power Cables After all these connections, connect the power cable of the Monitor to its place. Then plug in the power cable into its jack. Give the other end to a plug nearby. If a UPS is available, plug the power cable to the UPS and the power cable of the UPS to the Power plug.

Powering the System Plug in the power cord and switch the power supply switch to the on position. Press the power button. If everything is connected as it should be, all system fans should start spinning, you should hear a single beep, and after about 2-5 seconds the computer start to boot. Depending on the manufacturer of the Motherboard, you may get a splash screen, or just a memory check. The system will then halt with an error because we have yet to install an operation system. Now check the front LEDs to see if you plugged them in correctly. Also test the reset button. Power off and fix the LEDS if there are any problems.

Configurations

At the first screen press the Delete key to enter the BIOS setup. Review the BIOS settings. Here are a few that you may want to pay attention to:

• Time and date. • IDE devices - Hardisk and Floppy Drive. • Boot Order.

Finished If there are no troubles, the system is ready. The operating system can be installed now. If some problems have appeared, read the troubleshooting guide for instructions to solve the problem.

Page 46: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

44

Troubleshooting

The Troubleshooting section here is not intended as a comprehensive guide to troubleshooting computer systems, but rather as a quick checklist to point you in the right direction.

If you hit the power button and nothing happened: Is the power cord plugged in? Is it plugged in the other end too? Check the switch at the back of the case. Make sure that you connected the wire from the case power button to the right connector on the motherboard. Make sure the power connector to the motherboard is in correctly. Check the floppy power cable. Double-check all connections. If none of this makes a difference, next step is to unplug everything from the motherboard with the exception of the power cable, power button wire, video card, memory and processor. If it still will not power up, it's likely that you have one or more defective components. The most likely culprits are the motherboard or the case power supply.

If the system turns on, but does not beep or begin to boot up: First, double check all connections and try again. Otherwise, the best thing to do in this circumstance is to unplug everything from the motherboard with the exception of the power button wire, video card, memory and processor, then test it again.

If the computer successfully starts at this point, power off and reconnect one component at a time until you find the problem. If you cannot get it to boot up successfully, it is likely that you have one or more defective parts.

System turns on, beeps intermittently, does not boo t up: Check that your memory (RAM) chip is installed correctly. Remove it and re-install it if necessary.

System turns on, gives a sequence of quick beeps, d oes not boot up: Check that your video card is correctly seated in its AGP or PCI slot. The AGP slot especially can be unforgiving of a card that is a tiny bit out of position. There are a number of other error codes indicated by patterns of beeps from the motherboard speaker, but the two above are the most commonly encountered.

If you have got the system up and running, but are experiencing some problems installing an operating system, here are a couple of common issues:

Your system freezes intermittently while installing the OS: Could well be a heat issue, especially with AMD processors or older Intel ones. Check that the heat sink fan is spinning and that the heat sink itself is firmly mounted and parallel to the surface of the processor. Assuming you are using a stock heat sink from the manufacturer of the processor, it should be more than adequate to cool the system if properly applied.

You are having problems fully installing the OS due to errors copying files and blue screens: Errors while copying the setup files, especially with Windows 2000 or XP, are a common indicator of problems with your memory (RAM). It's possible it could also be a hard-drive problem, but if you are getting blue-screens also, especially any ones indicating that a 'page-fault' has occurred, it's time to pop the memory out and haul it back to the store to be tested. And don't leave it there for the night either.

Beep codes are used by the BIOS during the POST to report certain initial system errors.

Page 47: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

45

If you're hearing beep codes after you turn your computer on, it typically means that the system has encountered some kind of problem before it was able to display any kind of error information on the monitor.

Follow the steps below to determine what system problem the beep code is representing.

Here's How:

1. Power on the computer or restart it if it's already on.

2. Listen very carefully to the beep codes that sound when the computer begins to boot.

Restart your computer if you need to hear the beeping again. You're not likely to make whatever problem you have worse by restarting a few times.

3. Write down, in whatever way makes sense to you, how the beeps sound.

Important: Pay close attention to the number of beeps, if the beeps are long or short and if the beeping repeats or not. There is a big difference between a "beep-beep-beep" beep code and a "beep-beep" beep code.

This is all important information that will help determine what issue the beep codes are representing.

4. What steps you take to solve a particular beep code will differ depending on the BIOS manufacturer.

Choose the correct beep code troubleshooting guide below based on your motherboard's BIOS manufacturer:

• AMI Beep Code Troubleshooting (AMIBIOS) AMIBIOS is a kind of BIOS manufactured by American Megatrends (AMI). Many popular motherboard manufacturers have integrated AMI's AMIBOS into their systems.

Other motherboard manufacturers have created custom BIOS software based on the AMIBIOS system. The beep codes from AMIBIOS-based BIOS may be exactly the same as the true AMIBIOS beep codes below or they may vary slightly. You can always reference your motherboard's manual if you think this might be an issue.

Note: AMIBIOS beep codes are short, sound in quick succession, and usually sound immediately after powering on the PC.

1 Beep A single beep from an AMI based BIOS means there has been a memory refresh timer error. The solution is often to replace the RAM in the computer.

2 Beeps Two beeps means there has been a parity error in base memory. This is an issue with the first 64KB block of memory in your RAM. The solution is usually to replace the memory.

3 Beeps Three beeps means there has been a base memory read/write test error. Replacing the RAM usually solves this AMI beep code.

4 Beeps Four beeps means that the motherboard timer is not working properly. A hardware failure with an expansion card or the motherboard itself could be the cause of this beep code.

5 Beeps Five beeps means there has been a processor error. A damaged expansion card, the CPU, or the motherboard could be prompting this AMI beep code.

6 Beeps Six beeps means that there has been an 8042 Gate A20 test error. This beep code is usually caused by an expansion card that has failed or the motherboard that is no longer working.

7 Beeps

Page 48: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

46

Seven beeps indicate a general exception error. This AMI beep code could be caused by an expansion card problem, a motherboard hardware issue, or a damaged CPU. Replacing the faulty hardware usually fixes the cause of this beep code.

8 Beeps Eight beeps means that there has been an error with the display memory. This beep code is usually caused by a faulty video card. Replacing the video card usually clears this up.

9 Beeps Nine beeps means that there has been an AMIBIOS ROM checksum error. Literally, this would indicate an issue with the BIOS chip on the motherboard. However, since replacing a BIOS chip is sometimes impossible, this AMI BIOS issue is usually corrected by replacing the motherboard.

10 Beeps Ten beeps means that there has been a CMOS shutdown register read/write error. This beep code is usually caused by a hardware issue with the AMI BIOS chip. A motherboard replacement will usually solve this problem, although it could be caused by a damaged expansion card in rare situations.

11 Beeps Eleven beeps means that the cache memory test has failed. Some piece of failing hardware is usually to blame for this AMI BIOS beep code.

• Award Beep Code Troubleshooting (AwardBIOS) AwardBIOS is a kind of BIOS manufactured by Award, now owned by Phoenix Technologies. Many popular motherboard manufacturers use Award's AwardBIOS in their systems.

Other motherboard manufacturers have created custom BIOS software based on the AwardBIOS system. The beep codes from an AwardBIOS-based BIOS may be the same as the original AwardBIOS beep codes (below) or they may vary a little. You can always reference your motherboard's manual if you to be sure.

Note: AwardBIOS beep codes sound in quick succession and usually immediately after powering on the PC.

1 Short Beep A single, short beep from an Award based BIOS is actually an "all systems clear" notification. In other words, this is a beep code you want to hear and that you've probably been hearing each time your computer comes on since the day you purchased it. No troubleshooting necessary!

1 Long Beep, 2 Short Beeps One long beep followed by two short beeps indicates that there has been some kind of error with the video card. Replacing the video card is usually the most you'll have to do to fix this one.

1 Long Beep, 3 Short Beeps One long beep followed by three short beeps means that either the video card isn't installed or the memory on the video card is bad. Reseating or replacing the video card will typically fix the cause of this Award beep code.

1 High Pitched Beep, 1 Low Pitched Beep (Repeating) A repeating high pitched / low pitched beep pattern is an indication of some kind of CPU problem. The CPU could be overheating or malfunctioning in some other way.

1 High Pitched Beep (Repeating) A single, repeating, high pitched beeping sound means that the CPU is overheating. You'll need to figure out why the CPU is getting too hot before this Award beep code will go away. Important: Turn your computer off immediately if you hear this beep code. The longer your CPU is running hot, the higher the chance that you'll permanently damage this expensive part of your system.

All Other Beep Codes Any other beep code pattern you hear means that there has been some kind of memory problem. Replacing your RAM is the most you'll need to do to fix this problem.

Page 49: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

47

• Phoenix Beep Code Troubleshooting (PhoenixBIOS)

Phoenix BIOS is a kind of BIOS manufactured by Phoenix Technologies. A majority of modern motherboard manufacturers have integrated Phoenix Technologies' Phoenix BIOS into their systems.

Several custom implementations of the Phoenix BIOS system exist in many popular motherboards. The beep codes from Phoenix-based BIOS may be exactly the same as the true Phoenix beep codes below or they may vary. You can always check your motherboard manual to be sure.

Note: Phoenix BIOS beep codes are short, sound in quick succession, and usually sound immediately after powering on the PC.

1 Beep A single beep from a Phoenix based BIOS is actually an "all systems clear" notification. Technically, it's an indication that the Power On Self Test is complete. No troubleshooting necessary!

1 Long Beep, 2 Short Beeps One long beep followed by two short beeps indicates that there has been a checksum error. This means that there is some kind of motherboard issue. Replacing the motherboard should fix this problem.

1-2-2-3 Beep Code Pattern A 1-2-2-3 beep code pattern means that there has been a BIOS ROM checksum error. Literally, this would indicate an issue with the BIOS chip on the motherboard. Since replacing a BIOS chip is often not possible, this Phoenix BIOS issue is usually corrected by replacing the entire motherboard.

1-3-1-1 Beep Code Pattern A 1-3-1-1 beep code pattern on a PhoenixBIOS system means that there has been an issue while testing the DRAM refresh. This could be a problem with the system memory, an expansion card, or the motherboard.

1-3-1-3 Beep Code Pattern A 1-3-1-3 beep code pattern means that the 8742 keyboard controller test has failed. This usually means that there is a problem with the currently connected keyboard but it could also indicate a motherboard issue.

1-3-4-1 Beep Code Pattern A 1-3-1-1 beep code pattern on a PhoenixBIOS system means that there is some kind of issue with the RAM. Replacing the system memory usually fixes this problem.

1-3-4-3 Beep Code Pattern A 1-3-1-1 beep code pattern indicates some kind of issue with the memory. Replacing the RAM is the usual recommendation for solving this problem.

1-4-1-1 Beep Code Pattern A 1-4-1-1 beep code pattern on a PhoenixBIOS system means that there is an issue with the system memory. Replacing the RAM usually fixes this problem.

2-1-2-3 Beep Code Pattern A 2-1-2-3 beep code pattern means that there has been a BIOS ROM error, meaning an issue with the BIOS chip on the motherboard. This Phoenix BIOS issue is usually corrected by replacing the motherboard.

2-2-3-1 Beep Code Pattern A 2-2-3-1 beep code pattern on a PhoenixBIOS system means that there has been an issue while testing hardware related to IRQs. This could be a hardware or misconfiguration problem with an expansion card or some kind of motherboard failure.

Troubleshooting Tips for New Monitors -

Here is some basic trouble shooting tips for new monitors:

1. The picture does not appear

Page 50: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

48

• Check to make sure the signal cable is firmly connected in the socket. • Check to see if the computer system's power is ON. • Check that the Brightness Control is at the appropriate position, not at the minimum.

2. The Screen is not synchronized • Check to make sure the signal cable is firmly connected in the socket. • Check that the output level matches the input level of your computer. • Make sure the signal timing of the computer system is within the specification of the

monitor. 3. The position of the screen is not in the center

• Adjust the H-Size, H-Phase or V-Size, V-Center controls. • Check if the signal timing of the computer system is within the specification of the monitor.

4. The screen is too bright or too dark • Check if the Brightness or contrast control is at the appropriate position, not at the

maximum or minimum. • Check if the specified voltage is applied • Check if the signal timing of the computer system is within the specification of the monitor. • Especially, check the horizontal frequency.

5. The screen is shaking

• Move all objects that emit a magnetic field, such as a motor or transformer, away from the monitor.

• Check if the specified voltage is applied. • Check if the signal timing of the computer system is within the specification of the monitor.

Trouble Shooting Tips after Installing a New Hard D rive

1. Basic Troubleshooting Tips after Installing a New H ard Drive Based on Seagate IDE hard drives.

If you have installed your drive and it does not function properly, perform the following basic checks : Warning : Always turn off the computer before changing jumpers or unplugging cables and cards. Wear a ground strap or use other antistatic precautions while working on your computer or handling your drive.

• Verify compatibility . Verify that the host adapter and drive are appropriately matched to each other and to your computer. Refer to the relevant documentation for details.

• Check all cards . Verify that all cards are seated in their slots on the motherboard and secured with mounting screws.

• Check all connectors and cables . Make sure all ribbon and power cables are securely connected. Ribbon cables are easily damaged, especially at the connector. Try a new cable that you know is good. Make sure no connector pins are bent. Verify that pin 1 on the interface cable is aligned with pin 1 on the drive and host adapter.

• Verify jumper settings . Review the instructions in this guide and in your host adapter installation guide. Make sure all appropriate jumpers are installed or removed as necessary.

• Check your power-supply specifications . Each time you add a new device to your computer, make sure your computer’s internal power supply can support the total power demand. If necessary, consult your dealer for a new power supply.

• Verify the drive-type settings in the system setup program . The drive-type settings in the system BIOS must not exceed the physical specifications of your drive. Also, the settings must not exceed the limitations set by the operating system and BIOS.

• Check for viruses . Before you use someone else's diskette in your system for the first time, scan the diskette for viruses.

2. After you install your new drive, your computer wil l not boot, and no error message appears on the screen. Check your computer manual or BIOS manufacturer to determine whether your BIOS supports drives that have more than 4,092 cylinders. If your system has this limitation, use the following procedure to configure your computer:

Page 51: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

49

a. Turn off your computer, open the case, and remove your new drive. CAUTION: To avoid electrostatic discharge damage to your computer or hard drive, make sure you are well grounded before touching the drive, cable, connector or jumpers.

b. Move the jumper on the alternate-capacity jumper, as shown in Figure 6. This causes the drive to appear to your BIOS as having a 2.1-Gbyte capacity (4,092 cylinders, 16 heads, 63 sectors per track). You may need third-party partitioning software, such as Disk Manager, to achieve full capacity of the drive.

c. Remount your drive in the computer and replace the computer cover.

d. Insert a bootable system diskette into drive A and turn on the computer. It should boot from drive A and automatically detect the new drive as a 2.1 –G.byte drive.

e. Insert your Disc Wizard diskette into drive A and type A:XDM. Then press ENTER. This runs the Disk Manager program.

f. Follow the Disk Manager instructions to install the dynamic drive overlay and to partition and format your new drive to its full capacity.

g. After Disk Manager is done, reboot your system. You should see the Disk Manager banner and be able to access the full capacity of your new drive.

3. The screen remains blank when you power up the syst em. If the steps listed above do not remedy this problem, try the following:

• Make sure the monitor is plugged in and turned on. • Check all cards. • Make sure the video card is seated in its slot and secured with mounting screws. • Turn off the computer and remove the drive host adapter. If the screen turns on after you

reboot, the host adapter may be incompatible or defective. If so, see your dealer.

4. The system does not recognize the drive. • Check all cables. • Make sure the power supply is adequate for system needs. • Reboot the computer and listen to make sure the drive motor starts up. If the drive is very

quiet, it may be difficult to hear its discs reach operating speed. If the drive motor does not start up, recheck all drive cables.

• Verify that for each drive, a drive-type is listed in the system setup program. • Try rebooting your computer by pressing the CTRL, ALT and DELETE keys

simultaneously. If the drive is recognized after you reboot the system, the computer BIOS test may be completing before the drive is ready. One solution is to slow the processor speed during startup. If your computer has a turbo switch, set it to slow speed before turning the computer on. If there is no turbo switch, you may be able to use keyboard commands; see your computer manual for details. After the computer is up and running, return the processor to the fast speed. Another solution is to warm-boot your computer after every power-on.

• Check for I/O address conflicts. To isolate the conflict, verify that the drive and host adapter are compatible with your computer. Turn off the computer and remove all the peripheral adapter cards except for the video card and host adapter. If the computer recognizes the drive when you reboot the computer, turn off the computer. Reinstall the other peripheral cards, one at a time, until the conflict reoccurs. After you have isolated the source of the address conflict, you can resolve the conflict by changing the 1/0 address of the peripheral that appears to cause the conflict.

• If Disk Manager has installed the DDO on your hard drive and you have booted directly from a diskette, the information in the boot record for the drive may not have been loaded. Make sure there is no diskette in drive A and reboot. If you want to boot from the diskette, follow the "Booting with a Diskette" instructions under "Advanced Disk Manager Options".

5. The dealer partitioned and formatted the drive for you in the store, but the drive does not respond when you install it. • Reboot the computer and make sure the drive spins up. • Check all cables. • Make sure the power supply is adequate for system needs.

Page 52: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

50

• Make sure the DOS or Windows version the dealer used to partition and format the drive is the same version you have installed in your computer. If it isn't, see your dealer.

• Verify the drive-type values in the system setup program. You must install the drive using the same drive-type values your dealer used to partition the drive.

• Check for 1/0 address conflicts between peripheral cards. • Check for viruses.

6. The system hangs in FDISK or fails to create or sav e the partition record. • Check all cables. • Your setup system diskette may be corrupted. Try using a backup diskette. • Make the partitions smaller. • Change the interrupt jumper setting on the host adapter. • Some BIOS have a Track 0 protection feature that protects Track 0 from viruses. This may

cause FDISK to hang the system. You must disable this feature in the system setup program before you can use FDISK. See your computer reference guide for assistance. Be sure to re-enable this important feature when FDISK is done.

7. The system error message, "Drive not Ready," appear s. • Check all cable connections. Make sure pin 1 of the drive is connected to pin 1 of the

hard-disc controller or host adapter. • Make sure the power supply is adequate for system needs. • Reboot the computer and make sure the drive spins up.

8. The FDISK error message, "No Fixed Disk Present," a ppears. • Make sure the power supply is adequate for system needs. • Verify the drive-type values in the system setup program. • Check for 1/0 address conflicts.

9. The drive does not format to full capacity. • Verify the drive-type values in the system setup program. One of the following problems

may have occurred: • The values may be set with an incorrect translation characteristic. • You may have entered a parameter value that exceeds the physical capacity of the drive. • You entered a translation characteristic that does not take full advantage of the drive's

capacity. • The drive's physical specifications exceed the translation limits imposed by the BIOS.

CAUTION: If you change the drive-type values in the system setup program, you must partition and format the drive again. This erases data on the drive.

• If you have partitioned the drive into individual logical drives, you may need to make the partitions smaller to access the full drive capacity.

• If your computer supports LBA mode, you may need to enable LBA mode in the system setup program to access the full capacity of the drive. Refer to your computer's reference guide to find out how to enable LBA.

• Your computer may not support drives that have more than 4,092 cylinders. Follow the instructions on page 25 for After you install your new drive, your computer will not boot, and no error message appears on the screen.

10. The DOS message "Disk Boot Failure," "Non-System Di sk" or "No ROM Basic - SYSTEM HALTED" appears. • Reinstall the DOS system files using the DOS SYS utility. • Check all cables. • Use FDISK to verify that the primary partition is active. • Check for viruses.

11. The system error message, "HDD controller failure" appears. • Confirm the jumper settings on the drive. • Verify the drive-type settings in the system setup program

Page 53: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

51

Trouble Shooting Tips after Installing a New Video Card

The following troubleshooting tips may help if you experience problems.

• Check that the card is seated properly in its expansion slot. Some AGP cards have design flaws and are "well-known" to "pop out" during transportation. For PCI cards, if the problem still exists, try a difference PCI expansion slot.

• Ensure the display cable is securely fastened to the card's display connector. • Make sure that the display and computer are plugged in and receiving power. • If necessary, disable any built-in graphics capabilities on your motherboard. For more information,

see your computer's manual. • Make sure you selected the appropriate display device and graphics card when you installed your

enhanced driver. • If you have problems during start-up, start your computer in Safe Mode. In Windows 98, press the

F8 key when "Starting Windows 98" appears; or, in Windows 98, press and hold the CTRL key until the Windows 98 Startup Menu appears on the screen. Then select the number for Safe Mode, and press Enter.

Troubleshooting Tips for a New Motherboard More than 70% of all computer problems are related to cabling and connections. Ensure all cables are connected and connected firmly. IDE and floppy ribbon cables and power cables can often go loose. Ensure microprocessor, memory modules, and adapters such as video card are inserted correctly and didn't "pop-up" due to vibration. System has no power at all. Power light does not il luminate, fan inside the power supply does not turn on, and indicator light on keyboard d oes not turn on.

PROBABLE CAUSE DIAGNOSIS SOLUTION

Power cable is unplugged. Visually inspect power cable. Make sure power cable is securely plugged in.

Defective power cable. Visual inspection, try another cable. Replace cable.

Power supply failure. Power cable and wall socket are OK, but system is still dead.

Contact technical support

Faulty wall outlet;circuit breaker or fuse blown.

Plug device into socket know to work and test.

Use different socket, repair outlet, reset circuit breaker or replace fuse.

System in-operative. Keyboard lights are on, power indicator lights are lit, and hard drive is spinning.

PROBABLE CAUSE DIAGNOSIS SOLUTION

Expansion card is partially dislodged from expansion slot on the motherboard.

Turn off computer. Take cover off system unit. Check all expansion cards to ensure they are securely seated in slots.

Using even pressure on both ends of the expansion card, press down firmly on expansion card.

Defective floppy disk drive or tape drive.

Turn system off. Disconnect the cables from one of the floppy drives. Turn on the system, check to see if the keyboard operates normally. Repeat until you have located defective unit.

Contact Technical Support.

Defective expansion card. Turn computer off. Remove an expansion card.

Make sure expansion card is secure in expansion socket.

Page 54: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

52

System does not boot from hard disk drive, can be b ooted from floppy disk drive.

PROBABLE CAUSE DIAGNOSIS SOLUTION

Connector between hard drive and system board unplugged.

When attempting to run the FDISK utility described in the HARD DISK section of the manual you get a message, INVALID DRIVE SPECIFICATION.

Check cable running form disk to disk controller on the board. Make sure both ends are securely plugged in; check the drive type in the Standard CMOS Setup (in your motherboard manual).

Damaged Hard Disk or Disk Controller.

Format hard disk; if unable to do so, the hard disk may be defective.

Contact Technical Support.

Hard Disk directory or FAT is scrambled.

Run the FDISK program, format the hard drive(See HARD DRIVE section of manual). Copy your backup data back onto hard drive.

Backing up the hard drive is extremely important. All Hard Disks are capable of breaking down at any time.

System only boots from Floppy Disk. Hard Disk can b e read and applications can be used, but booting from Hard Disk is impossible.

PROBABLE CAUSE DIAGNOSIS SOLUTION

Hard Disk boot program has been destroyed.

A number of causes could be behind this.

Back up data and applications files. Reformat the Hard Drive as described in the Hard Drive section of the manual. Re-install applications and data using backup disks.

Error message reading "SECTOR NOT FOUND" or other e rror messages indication certain data is not allowed to be retrieved.

PROBABLE CAUSE DIAGNOSIS SOLUTION

A number of causes could be behind this.

Use a file by file backup instead of an image backup to backup the Hard Disk.

Back up any salvageable data. Then do a low level format, partition, and high level format of the hard drive( see Hard Disk section of your manual for instructions). Re-install all saved data when completed.

Disk formatted on IBM PS/2 will not operate with th is system.

PROBABLE CAUSE DIAGNOSIS SOLUTION

The IBM PS/2 uses a different format than other computers.

IBM PS/2 disk format will not work in an AT type computer.

Format disk in the AT type computer insert disk into the IBM PS/2 and copy the files you wish.

After install an expansion card (network card, tape drive card, etc.) the system no longer works properly.

Page 55: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

53

PROBABLE CAUSE DIAGNOSIS SOLUTION

No power to monitor.

All or part of the system may be inoperable. The new card may work but a mouse or COM port may not work.

Change the interrupt or RAM address on the new expansion card. See the documentation that came with the new card in order to change pin settings. Many expansion devices come with proprietary software that will assist you in doing this.

Screen message says "Invalid Configuration" or "CMO S Failure."

PROBABLE CAUSE DIAGNOSIS SOLUTION Incorrect information entered into the configuration (setup) program.

Check the configuration program. Replace any incorrect information.

Review system's equipment. Make sure correct information is in setup.

Screen is blank.

PROBABLE CAUSE DIAGNOSIS SOLUTION

No power to monitor. Power connectors may be loose or not plugged in.

Check the power connectors to monitor and to system. Make sure monitor is connected to display card, change I/O address on network card if applicable.

Monitor not connected to computer. See instructions above.

Network card I/O address conflict. See instructions above.

System does not boot from hard disk drive, can be b ooted from floppy disk drive.

PROBABLE CAUSE DIAGNOSIS SOLUTION

Connector between hard drive and system board unplugged.

When attempting to run the FDISK utility described in the HARD DISK section of the manual you get a message, INVALID DRIVE SPECIFICATION.

Check cable running form disk to disk controller on the board. Make sure both ends are securely plugged in; check the drive type in the Standard CMOS Setup (in your

Problem

PROBABLE CAUSE DIAGNOSIS SOLUTION

Memory problem, display card jumpers not set correctly.

Reboot computer. Re-install memory, make sure that all memory modules are installed in correct sockets. Check jumper and switch settings on display card. See display card section for information of settings.

Computer virus. Use anti-virus programs (McAfee/PC-cillin, E-port, etc) to detect and clean viruses.

Page 56: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

54

Screen goes blank periodically.

PROBABLE CAUSE DIAGNOSIS SOLUTION Screen saver is enabled. Disable screen saver.

Keyboard failure.

PROBABLE CAUSE DIAGNOSIS SOLUTION

Keyboard is disconnected. Reconnect keyboard. Check keys again, if no improvement, replace keyboard.

No color on screen.

PROBABLE CAUSE DIAGNOSIS SOLUTION

Faulty Monitor. If possible, connect monitor to another system. If no color, replace monitor.

CMOS incorrectly set up. Call technical support.

Floppy drive lights stays on.

PROBABLE CAUSE DIAGNOSIS SOLUTION

Floppy Drive cable not connected correctly.

Reconnect floppy cable making sure PIN1 on the Floppy Drive corresponds with PIN1 on floppy cable connector.

Error reading drive A:

PROBABLE CAUSE DIAGNOSIS SOLUTION Bad floppy disk. Try new floppy disk.

Floppy disk not formatted Format floppy disk(type ENTER)

C: drive failure.

PROBABLE CAUSE DIAGNOSIS SOLUTION

SETUP program does not have correct information.

Boot from drive A: using DOS system disk. Input correct information to SETUP program.

Hard Drive cable not connected properly. Check Hard drive cable.

Cannot boot system after installing second hard dri ve.

PROBABLE CAUSE DIAGNOSIS SOLUTION Master/Slave jumpers not set correctly. Set master /Slave jumpers

correctly.

Hard Drives not compatible / different manufacturers.

Run SETUP program and select correct drive types. Call drive manufactures for compatibility with other drives.

Page 57: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

55

Missing operating system on hard drive.

PROBABLE CAUSE DIAGNOSIS SOLUTION CMOS setup has been changed. Run setup and select correct

drive type.

Certain keys do not function.

PROBABLE CAUSE DIAGNOSIS SOLUTION Keys jammed or defective. Replace keyboard.

Keyboard is locked, no keys function.

PROBABLE CAUSE DIAGNOSIS SOLUTION Keyboard is locked. Unlock keyboard

Troubleshooting Tips for a New Network Card

1. If you can't connect to a server or if Windows repo rts an error after you double-click Network Neighborhood, try the following first :

• Make sure you're using the drivers that are on the driver’s disk that ships with the network interface card (NIC).

• Make sure the driver is loaded and the protocols are bound. Check the Device Properties list for trouble indicators (an "X" or "!" symbol).

• Test the NIC adapter with the diagnostic utilities that often came with the driver installation. • Check with your LAN administrator - you may need to install additional networking

software. 2. If the problem persists, follow these guidelines:

• Make sure the cable is installed properly . The network cable must be securely attached at both RJ45 connections (adapter and hub). The maximum allowable distance from adapter to hub is 100 meters. If the cable is attached and the distance is within acceptable limits but the problem persists, try a different cable. If you're directly connecting two computers without a hub or switch, use a crossover cable.

• Try another network cable. • Check the LED Lights on the NIC . Before the LEDs can be used for troubleshooting, the

network interface card (NIC) must be connected to the network and the network driver must be installed. Most NICs come with LEDs near the connection. The meaning of the LED signals may be different from one manufacturer to the other. Here is a common LED description for 3COM 10/100BT dual speed NIC. Please consult your NIC manual for any difference.

LED Description Flashing Steady (On) Off 10

LNK Green: Link integrity Reversed polarity

Good 10BT connection

No connection between NIC & hub

100 LNK Green: Link integrity Reversed

polarity Good 100BT connection

No connection between NIC & hub

ACT Yellow: Port traffic for either speed

Network traffic present

Heavy network traffic No traffic

3. The computer hangs when the drivers are loaded. • Change the PCI BIOS interrupt settings. See your NIC and system manuals for more

details. • If you are using EMM386, it must be version 4.49 or newer.

4. Diagnostics pass, but the connection fails or error s occur. • At 100BT, use Category 5 wiring and make sure that the network cable is securely

attached. • At 100BT, connect to a 100BT hub/switch (not 100Base-T4).

Page 58: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

56

• For NetWare, make sure you specify the correct frame type in your NET.CFG file. • Make sure the duplex mode setting on the adapter matches the setting on the switch.

5. The LNK LED doesn't light. • Make sure you've loaded the network drivers. • Check all connections at the adapter and the hub/switch. • Try another port on the hub/switch. • Make sure the duplex mode setting on the adapter matches the setting on the hub/switch. • Make sure you have the correct type of cable between the adapter and the hub. 100Base-

TX requires two pairs. Some hubs require a crossover cable while others require a straight-through cable.

6. The ACT LED doesn't light. • Make sure you've loaded the correct network drivers. • The network may be idle. Try accessing a server. • The adapter isn't transmitting or receiving data. Try another adapter. • Make sure you're using two-pair cable for TX wiring.

7. The adapter stopped working without apparent cause. • Run the diagnostics program that came with the NIC. • Try reseating the NIC in its slot, or try a different slot if necessary. • The network driver files may be corrupt or missing. Remove the drivers and then reinstall

them. 8. The Wake on LAN (WOL) feature is not working.

• Make sure the WOL cable is attached and that power is being applied to the computer. • Check the BIOS for its WOL setting. Some computers may need to be configured for

WOL. • Make sure the network cable is fully attached to the adapter.

9. Crossover cable troubleshooting tips. When you work with network cabling, concentrators (hubs or switch), and NICs from different venders, it is possible to connect everything and still have no communication between file servers and workstations. When there are several unknown variables, it is difficult to determine which component is broken. Use these tips to isolate the problem. • Determine whether your equipment complies with the 10Base-T or 100Base-TX

standard . This is particularly important for hubs and switches. • Connect a straight-through cable from the PC to the hub . The hub performs an

internal crossover so that the signal can go from TD+ to RD+ and TD- to RD- (see How to Make Network Cables). When you look at an RJ-45 connector from the front, pin 1 is identified on the left-hand side when the metal contacts are facing up.

• Make sure that the TD+ and TD- wires are twisted to gether, and that the RD+ and RD- wires are twisted together. Using wires from opposing pairs can cause signals to be lost. For a 100Base-TX cable, pins #1 and #2, and #3 and #6 must be on the same twisted strand.

10. When there is doubt whether a hub is performing cor rectly, or if the impedance settings are in question, a crossover cable can hel p you isolate the failing component: • Connect a file server and a client PC back to back with a crossover cable to verify that the

NIC and network operating system are properly configured. • To make a crossover cable, simple connect TD+ to RD+ and TD- to RD-. The cable

performs the crossover that is usually performed by the hub. Make sure that two twisted-pair wires are used. If the file server and client PC function together as a small network, then either the existing cabling or the hub is the problem.

• If there is a proper crossover, the appropriate LED comes on. If there is a straight-through connection, the LED does not light. A blinking LED indicates that there is a polarity mismatch (that is, TD+ to RD- instead of TD+ to RD+).

Troubleshooting Tips for a New Sound Card

No sound is heard from audio (music) CDs Various conditions may cause this problem. To troubleshoot, check the following:

• Microsoft Volume Control or your mixer program’s mute options and volume sliders.

Page 59: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

57

• Connect headphones to the stereo phone jack on your CD-ROM drive’s front panel; adjust the volume control settings on the drive. If there is sound from your headphones, check the CD audio cable connection from the CD-ROM drive to the audio card.

• Ensure the speakers are properly connected to the audio card’s output connector. • Find out where to purchase quality discount computer speakers . Browse from the variety of

models and designs.

Joystick port is not working To troubleshoot, check the following:

• The audio card joystick port conflicts with another joystick port in the system. Disable the audio card joystick port, and use the system’s joystick port.

• The joystick drivers, MSJSTICK.DRV and VJOYD.VXD, may not be installed. Uninstall the joystick, then reinstall to load the drivers. The drivers should come with the driver CD or floppy diskette with your sound card.

Computer hangs or restarts during installation A hardware conflict may cause the computer to hang or restart during the installation procedure. Check the following to resolve the conflict:

• A hardware conflict with another device in your system. • Previously installed sound card hardware or software needs to be removed. • The audio card is not seated in the slot properly. • PCI bus mastering devices may be interfering with the operation of the audio card. Temporarily

remove non-essential PCI bus mastering devices.

Resolving hardware conflicts Hardware conflicts occur when two or more devices contend for the same resources. Conflicts between your audio card and another device may occur regarding the I/O address, IRQ line, or DMA channel:

1. Right-click the My Computer icon on your desktop, and select Properties. The System Properties dialog appears.

2. Click the Device Manager tab. In the Device Manager, a plus sign(+) represents an expandable list of items. A minus sign (-) represents an expanded list. A circled exclamation mark denotes a conflict.

3. Double-click Sound, video, game controllers. A list of multimedia devices appears. 4. Select your audio card. 5. Choose the Properties button. 6. Click the Resources tab. 7. Uncheck the Use automatic settings option. 8. Change "Settings based on:" if alternate settings are available. 9. Determine the conflict by reviewing the "Conflicting device list". 10. Select the conflicting item in the "Resource Settings" list. 11. Click the Change Settings button. 12. Use the mouse to select a new setting. 13. Select OK to close each of the properties windows, and restart your computer.

Audio card is not automatically detected To manually configure your audio card for Windows 95/98:

a. Click "Start" on the taskbar, and select Settings from the Start menu. b. Select Control Panel. The Control Panel group appears. c. Double-click the Add New Hardware icon. The Add New Hardware Wizard dialog appears. d. Select Next to continue. e. Choose Yes to have Windows search for new hardware, then select Next f. Select Next to continue. g. Select Finish, and follow the prompts to complete the new hardware installation.

CD does not automatically run when you insert it in the drive To enable the "Audio insert notification" feature:

Page 60: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

58

1. Right-click the My Computer icon on your desktop, and select Properties. The System Properties dialog appears.

2. Click the Device Manager tab. A list of devices appears. 3. Double-click CD-ROM, and select your CD-ROM drive. 4. Choose the Properties button. The CD-ROM drive properties dialog appears. 5. Choose the Settings tab. 6. Click the "Auto insert notification" option to enable. 7. Select OK until all Properties dialogs are closed, and restart Windows for the changes to take

effect.

No sound is heard from speakers Verify the following:

• Check the Microsoft Volume Control or the Audio Mixer Program mute options and volume sliders. • Ensure the speakers are properly connected to the audio card’s output connector. • Check the volume control and power connection of the speakers, if they are amplified. (Refer to

the speaker’s documentation for detailed information). • Ensure a hardware conflict does not exist between your audio card and another device in your

system. • PCI bus mastering devices may be interfering with the operation of the audio card. Temporarily

remove non-essential PCI bus mastering devices. If the device is a display card, upgrade the display card drivers, or set the card to the default Windows VGA mode.

If you are experiencing no sound only during audio CD playback, see "No sound is heard from audio (music) CDs" above. Static sounds are heard in wave files Check to see if the static sounds are heard in all wave files. If the difficulty occurs only with certain games, refer to the software manufacturer’s documentation. To troubleshoot static sounds heard in all wave files:

• Try different resource settings for the audio card, or set the card to use low DMA. • Move the audio card to another PCI slot. Feedback from the power supply or another device may

be responsible.

Troubleshooting Tips for Cases and Power Supplies

The most important part of a computer case is its power supply. Unfortunately, it's also the part that has most of the problems for a case. There are two situations when a new power supply may appear dead on arrival (DOA) when they are actually working as described below:

Most cases and power supplies these days are made and tested in China and other Asian countries where 220V electricity is used. Desktop computer power supplies do not switch the power voltage automatically. (Most notebook computers do!) If the factory forgets to turn the manual switch back to 110V for the North American market after testing, the power supply would appear DEAD if you use on an 110V-outlet. Therefore, always check the voltage setting on the back of a new power supply FIRST if it appears dead.

Do not expect an ATX power supply to work by simply plugging the power and turning on the switch. ATX power supplies are soft-switched on and off by the motherboard and BIOS. Therefore, you must plug it to a working motherboard with a working microprocessor, memory and video card to work. If your computer does not turn on after you turn on the power switch, it may not necessarily mean a dead power supply. The problem might be with the motherboard, microprocessor, memory or video card instead. You must examine all these components to isolate the problem.

The most effective technique to tell if a power supply is causing any problem is to use a different one to see if it solves the problem. If everything works with a different power supply, then the new power supply is most likely the troublemaker. Alternatively, you can plug the new power supply to an existing, working computer to see if it works there.

Page 61: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

59

Computer cases are highly modular. If your computer case is still under warranty, you don't have to send the entire case back if only one part of it is defective. For instance, send only the power supply back for exchange if only power supply is dead. The same is true for the face panel and cover. This would save you quite a bit of shipping and sometimes downtime.

More than 70% of all computer problems are related to cabling and connections. Ensure that you all the power plugs are connected firmly, including power connections to your motherboard and all the drives.

Make sure the cooling fan inside the power supply is working all the time. Reach out to feel the fan behind your case often. Clean the fan if necessary. If your case feels warmer than room temperature, check the power supply fan first. Most power supply fans are difficult to replace. You are better off to replace the entire power supply since the new one comes with a brand-new warranty.

Before ATX form factor became popular, the compatibility between a power supply and a specific motherboard could be problematic. However, this problem nowadays does not happen very often any more.

The rest of a case is mostly mechanical. You should be able to find a way to get around most of the problems if you are mechanically inclined.

Fax/Modem Troubleshooting Tips

My modem is a 56K, but I can connect to the Interne t only at slower speed.

The current copper wired telephone lines are limited only to about 53K. If you are connected only to 33.6 or 28.8K, check the following first:

• Is your modem compatible with the modem used at your ISP? • Is your modem set up to run at full speed? • What's the maximum speed your ISP allows? • How far away are you from your ISP? • Some modems need special initiation strings to get full speed. • Some conditions are out of your control, such as weather and conditions of the telephone lines in

your community. • Problems may occur when you are dialing through a phone system such as one in a hotel.

Modem answers incoming calls and then returns to th e on-hook condition, disconnecting the caller: This occurs most often when connecting to a UNIX system. In most case, the host does not prefer to see any result or command echo codes. If this is the case, the codes can be disabled by adding E0 Q1 to the modem configuration string. The modem dials and appears to complete the connect ion, but the communications software does not enter the correct mode. (The screen remains bla nk) This is normally caused by an I/O address or IRQ conflict. Verify that the COM port is not in use by any other serial device and if necessary use another COM port or I/O address setting. Refer to your computer manual on how to determine what serial ports are installed. The modem dials and appears to complete the connect ion, but the communications software does not enter the correct mode. (The screen remains bla nk)

• There may be an I/O conflict (see the solution for the previous problem). • The Result Codes may have been disabled by the software configuration set up. Check if Q1 is in

the configuration or initialization string. If so, change it to Q0. • Your software may require numeric result codes rather than verbal result codes. Use either V0 for

numeric result codes or V1 for verbal result codes in your initialization or configuration string. • Some software require full extended result codes (i.e., CONNECT 33600 instead of CONNECT).

This can be controlled by the Xn command. X0 sends a summarized code (CONNECT) and X4 sends a full extended code (CONNECT 33600)

The modem does not auto answer The auto answer mode is determined by the S0 register. If S0 has been set to 0, the modem will not

Page 62: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

60

answer. Assign another value to S0 by entering the following command: S0=n, where n = the number of rings to occur before the call is answered (ATS0=2, the modem answers after two rings) The modem always answers the phone. Set the S0 register to 0. ATS0=0. The communications software displays, "No Dial tone ." Make sure that your phone cable is working properly and that it is firmly seated to the phone socket at your phone jack and in the real panel of the modem. A high pitched squeal is emitted from the external speakers This phenomenon is "feedback" and occurs when the microphone is pointed at the external speaker or is close enough to pick up the speaker output. This may be remedied by using a unidirectional microphone, making sure that it is pointed away and as far from the speaker as functionally possible. Another option is to use a headset with an attached microphone.

Tips about DSL Modem

Digital DSL Modem

The modem that is used to send and receive data to and from a digital telephone line, for example ISDN and DSL modems. These modems send and receive the digital signals to and from the digital line. These modems are available in market with USB and Ethernet ports, for single computer the USB modem is the best choice but if you want to share one DSL connection on more than two computers then you should try Ethernet port modem. DSL modems use the digital signal that is why these modems do not convert the digital signals into analog. DSL modem provide higher speed internet up to 24 Mbps downstream and 3.5 Mbps upstream. The price range of DSL modems between 60$ to 225$ but Some DSL providers offer more benefits for you with DSL connection to compete with others services provider like free modem with one year warranty. If you want your DSL working with good speed and error free then make sure there is no any joint between telephone line tower and modem line. Your DSL modem may be heat up, hang and slow, if your DSL modem continually on for 24-hours, then restart it to solve this problem.

Selecting a Scanner

Types of Scanners

Scanners come in a variety of configurations. The type you should consider depends on both your planned scanning needs and your budget.

• Drum scanners . This type of scanner provides the highest level of image quality. They are typically found at professional printing businesses. In a drum scanner, the original is attached to a cylindrical drum and rotated past the sensing elements. These scanners are very expensive, with capabilities that go well beyond the needs of desktop scanning.

• Flatbed scanners . This type of scanner provides a flat glass surface onto which the original is placed. The illumination and sensing elements move under the glass to scan the image. Flatbed scanners are available in a wide range of sizes, prices, and capabilities. Some flatbeds offer a transparency scanning adapter as an option.

• Single sheet scanners . This type of scanner is designed for single sheets of paper. You insert one edge of the paper in a slot and the scanner grabs it, feeds it past the sensing array, and passes it out the other side. Some single sheet scanners are even integrated into keyboards. Such scanners were originally designed for digitizing documents and images for archiving, and many models are not suitable for creating high-quality images.

• Sheet-fed scanners . These scanners take a stack of pages and scan them in sequence while you get coffee. Some even do duplex (2 sided) scans. They are very useful in some situations but not much use to the philatelist.

• Photo scanners . This type of scanner is designed to scan snapshots up to approximately 4´6 inches in size. Some are separate desktop units; others install directly into a computer much like a diskette drive.

Page 63: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

61

• Hand scanners . This type of scanner requires the user to manually scan an image. Hand scanners look something like an overgrown mouse. To scan, you manually drag the unit over the original document. Handheld scanners are suitable only for small originals that are no wider than the scanner itself. In theory, most hand scanners permit you to scan a wide original in two or more passes and "stitch" the scans together into a final image. This, however, never works as well as the manufacturers claim.

• Slide scanners . This type of scanner is designed for scanning slides (transparencies) rather than opaque originals, such as photographic prints. While rarely relevant for scanning philatelic material, a dedicated slide scanner is the best choice for scanning slides. Some flatbed scanners come with transparency adapters but they do not provide top quality results, particularly with small slides such as 35mm. Slide scanners have very high resolution, typically a minimum of 2400 dpi, required for getting all the details out of your slides. Many slide scanners also have the ability to scan color negatives and to convert the negative image to a positive image.

For philatelic purposes, a flatbed scanner is undoubtedly the most versatile. You can scan anything from a single stamp to an entire stock book or album page. A hand scanner may be a viable alternative, particularly if your budget is tight. Their width limitation does not matter so much for stamps and covers. I have also seen single sheet scanners and photo scanners used successfully for philatelic purposes, although they require that the item being scanned be sandwiched between clear plastic sheets for feeding into the scanner.

Wireless Headset Tips

The Best Wireless Headset

The best wireless headset for you will depend on your needs and how often you will use it. For a cell phone wireless headset, you will want to look for a blue tooth headset, as that is the industry standard. Other features to consider include:

• Comfortable fit

• Features you require

• Within your price range

• Compatible with your current cell phone.

If you need a wireless headset with a landline telephone, you need to consider some alternate options:

• What brand name are you most comfortable with? Wireless headsets for your regular phone come from various manufacturers including Plantronics, GN Netcom and Polycom.

• How much desk space you want it to take up?

• How much range it needs to have (how large is your office)

You may not have considered it, but you can also get a headset for your computer. If you use Skype or any of the other nifty computer phone call programs, you may have a headset plugged into your desktop or laptop already, but wireless may make your life much more flexible.

Wireless Headset: Bluetooth

Bluetooth is another wireless standard, mostly used for short range connectivity. You will often find Bluetooth technology in printers, cell phones and wireless headsets. Its range is significantly shorter then other wireless technology, about 30 feet. It is less expensive then other Wi-Fi standards and works well for many home offices. This is why Bluetooth has been included in many wireless headsets - but beware of that range, you don't want to wander too far from your source and lose you call.

Reasons to Use a Wireless Headset

A wireless headset offers you significantly more freedom while you talk on your cell phone or regular phone. By plugging in the wireless adaptor, you can walk all over your home or office. The benefits in an office environment are clear, but these are also great for stay at home parents who may be chasing an active toddler all over the house! The car is another obvious location for the use of a wireless headset.

Good wireless headsets come equipped with volume control and answer buttons and they should be small and fit comfortably over your ear. They should be snug enough so you don't have to worry about the headset slipping off your ear or falling to the ground.

Page 64: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

62

Problems with Wireless Headset

If your wireless headset is having performance issues, there are a few things you can check.

• Make sure your telephone or cell phone is within range and not overly obstructed.

• Check to make sure your cell phone battery is charged and you are receiving a good signal.

• Typically, with wireless headsets you will have multiple channels from which to select the best signal, so make sure that you have switched around to see which is best and that you aren't still on the default channel.

• Make sure you try your phone without the headset on at all to ensure that the line or signal is strong.

• Finally, check to make sure the batteries in the wireless headset are charged.

Wireless Headset

A wireless headset is a small device you slip over your ear that allows you to talk via your cell phone, but hands free. Using the blue tooth technology standard, wireless headsets offer an excellent range and great hands free features.

These wireless headsets have been especially popular with commuters and people who need to use their cell phones in their car. The increased safety afforded when you are using both hands to drive makes the investment in one of the headsets an easy decision. Additionally, you aren't hampered by an annoying cord which can also be hazardous if you need full range of motion to avoid a potential car accident.

Wireless Headset with Regular Phone

There are wireless headsets on the market that you can use with a regular phone, but don't think you'll have to buy a different headset for every phone in your home or office. There are also wireless headset devices that you can hook up to a regular phone, cell phone and PDA, and you can alternate which device you wish to use your wireless headset with. This kind of flexibility is key in this day and age of telecommunications - and for your wallet.

NETWORKING

Introduction to TCP/IP Summary: TCP and IP were developed by a Department of Defense (DOD) research project to connect a number different networks designed by different vendors into a network of networks (the "Internet"). It was initially successful because it delivered a few basic services that everyone needs (file transfer, electronic mail, remote logon) across a very large number of client and server systems. Several computers in a small department can use TCP/IP (along with other protocols) on a single LAN. The IP component provides routing from the department to the enterprise network, then to regional networks, and finally to the global Internet. On the battlefield a communications network will sustain damage, so the DOD designed TCP/IP to be robust and automatically recover from any node or phone line failure. This design allows the

Page 65: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

63

construction of very large networks with less central management. However, because of the automatic recovery, network problems can go undiagnosed and uncorrected for long periods of time.

As with all other communications protocol, TCP/IP is composed of layers:

• IP - is responsible for moving packet of data from node to node. IP forwards each packet based on a four byte destination address (the IP number). The Internet authorities assign ranges of numbers to different organizations. The organizations assign groups of their numbers to departments. IP operates on gateway machines that move data from department to organization to region and then around the world.

• TCP - is responsible for verifying the correct delivery of data from client to server. Data can be lost in the intermediate network. TCP adds support to detect errors or lost data and to trigger retransmission until the data is correctly and completely received.

• Sockets - is a name given to the package of subroutines that provide access to TCP/IP on most systems.

Network of Lowest Bidders

The Army puts out a bid on a computer and DEC wins the bid. The Air Force puts out a bid and IBM wins. The Navy bid is won by Unisys. Then the President decides to invade Grenada and the armed forces discover that their computers cannot talk to each other. The DOD must build a "network" out of systems each of which, by law, was delivered by the lowest bidder on a single contract.

The Internet Protocol was developed to create a Network of Networks (the "Internet"). Individual machines are first connected to a LAN (Ethernet or Token Ring). TCP/IP shares the LAN with other uses (a Novell file server, Windows for Workgroups peer systems). One device provides the TCP/IP connection between the LAN and the rest of the world.

How to wire your own Ethernet cables and connectors. What You Need: Required:

CAT 5 Cable - bulk Category 5, 5e or 6 cable

• RJ45 Ends

• Crimper for RJ45

• Wire Cutters - to cut and strip the cable if necessary

Recommend:

• Wire Stripper

• Cable Tester

About the Cable: You can find bulk supplies of the cable at many computer stores or most electrical or home centers. You want UTP (Unshielded Twisted Pair) Category 5 cable for basic 10/ 100 functionality. You need CAT 5e for gigabit (1000BaseT) operation and CAT 6 gives you a measure of future proofing. Bulk cable comes in

Page 66: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

64

many types; there are 2 basic categories, solid and braided cable. Braided cable tends to work better in "patch" applications for desktop use. It is more flexible and resilient than solid cable and easier to work with, but really meant for shorter lengths. Solid cable is meant for longer runs in a fixed position. Plenum rated cable should/must be used whenever the cable travels through an air circulation space. For example, above a false ceiling or below a raised floor.

You're likely going to want braided type cable but it may be difficult or impossible to tell from the box.

Here is what the internals of the cable look like :

Internal Cable Structure and Color Coding

Inside the cable, there are 8 color-coded wires. These wires are twisted into 4 pairs of wires; each pair has a common color theme. One wire in the pair being a solid or primarily solid colored wire and the other being a primarily white wire with a colored stripe (Sometimes cable doesn't have any color on the striped cable, the only way to tell is to check which other wire it is twisted around). Examples of the naming schemes used are: Orange (alternatively Orange/White) for the solid colored wire and White/Orange for the striped cable. The twists are extremely important. They are there to counteract noise and interference. It is important to wire according to a standard to get proper performance from the cable. The TIA/EIA-568-A specifies two wiring standards for a 8-position modular connector such as RJ45. The two wiring standards, T568A and T568B vary only in the arrangement of the colored pairs. Tom writes to say "...sources suggest using T568A cabling since T568B is the AT&T standard, but the US Government specifies T568A since it matches USOC cabling for pairs 1 & 2, which allows it to work for 1/2 line phones...". Your choice might be determined by the need to match existing wiring, jacks or personal preference, but you should maintain consistency. I've shown both below for straight through cabling and just T568B for cross over cabling.

About the RJ45 Ends: The RJ45 end is a 8-position modular connector that looks like a large phone plug. There are a couple variations available. The primary variation you need to pay attention to is whether the connector is intended for braided or solid wire. For braided/stranded wires, the connector has contacts that actually pierce the wire. For solid wires, the connector has fingers, which pierce the insulation and make contact with the wire by grasping it from both sides. The connector is the weak point in an Ethernet cable, choosing the wrong one will often cause grief later. If you just walk into a computer store, it's nearly impossible to tell what type of connector it is.

Here is a diagram and pin out:

RJ45 Jack and Plug Pin out

Ethernet Cable Pinouts: There are two basic cables. A straight through cable, which is used to connect to a hub or switch, and a cross over cable used to operate in a peer-to-peer fashion without a hub/switch. Some interfaces can cross and un-cross a cable automatically as needed, really quite nice.

Page 67: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

65

Standard, Straight-Through Wiring (both ends are th e same):

RJ45 Pin # Wire Color (T568A)

Wire Diagram (T568A)

10Base-T Signal 100Base-TX Signal

1000Base-T Signal

1 White/Green Transmit+ BI_DA+

2 Green Transmit- BI_DA-

3 White/Orange Receive+ BI_DB+

4 Blue Unused BI_DC+

5 White/Blue Unused BI_DC-

6 Orange Receive- BI_DB-

7 White/Brown Unused BI_DD+

8 Brown Unused BI_DD-

Straight-Through Cable Pinout for T568A

RJ45 Pin # Wire Color (T568B)

Wire Diagram (T568B)

10Base-T Signal 100Base-TX Signal

1000Base-T Signal

1 White/Orange Transmit+ BI_DA+

2 Orange Transmit- BI_DA-

3 White/Green Receive+ BI_DB+

4 Blue Unused BI_DC+

5 White/Blue Unused BI_DC-

6 Green Receive- BI_DB-

7 White/Brown Unused BI_DD+

8 Brown Unused BI_DD-

Cross Over Cable (T568B):

RJ45 Pin # (END 1)

Wire Color

Diagram End #1

RJ45 Pin # (END 2)

Wire Color

Diagram End #2

1 White/Orange 1 White/Green

2 Orange 2 Green

3 White/Green 3 White/Orange

4 Blue 4 White/Brown

5 White/Blue 5 Brown

6 Green 6 Orange

7 White/Brown 7 Blue

8 Brown 8 White/Blue

+Note: The cross over cable layout is suitable for 1000Base-T operation, all 4 pairs are crossed.

How to wire Ethernet Cables:

Page 68: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

66

1. Strip off about 2 inches of the cable sheath. 2. Untwist the pairs - don't untwist them beyond what you have exposed, the more untwisted cable

you have the worse the problems you can run into. 3. Align the colored wires according to the diagrams above. 4. Trim all the wires to the same length, about 1/2" to 3/4" left exposed from the sheath. 5. Insert the wires into the RJ45 end - make sure each wire is fully inserted to the front of the RJ45

end and in the correct order. The sheath of the cable should extend into the RJ45 end by about 1/2" and will be held in place by the crimp.

6. Crimp the RJ45 end with the crimper tool 7. Verify the wires ended up the right order and that the wires extend to the front of the RJ45 end and

make good contact with the metal contacts in the RJ45 end. 8. Cut the cable to length - make sure it is more than long enough for your needs. Remember, an

end-to-end connection should not extend more than 100m (~328ft). Try to keep cables short, the longer the cable becomes the more it may affect performance, usually noticeable as a gradual decrease in speed and increase in latency.

9. Repeat the above steps for the second RJ45 end. 10. If a cable tester is available, use it to verify the proper connectivity of the cable.

That should be it, if your cable doesn't turn out, look closely at each end and see if you can find the problem. Usually a wire ended up in the wrong place or more commonly, one of the wires didn't extend to the front of the RJ45 connector and is making no, or poor contact. If you see a mistake or problem, cut the end off and start again.

Understanding IP Addressing An IP address is a 32-bit value that uniquely identifies every device attached to a TCP/IP network. IP addresses are usually written as four decimal numbers separated by dots (periods) in a format called dotted decimal notation. Each decimal number represents an 8-bit byte of the 32-bit address, and each of the four numbers is in the range 0-255 (the decimal values possible in a single byte).

IP addresses are often called host addresses. While this is common usage, it is slightly misleading. IP addresses are assigned to network interfaces, not to computer systems. A gateway, such as crab (see Figure 2-1), has a different address for each network to which it is connected. The gateway is known to other devices by the address associated with the network that it shares with those devices. For example, rodent addresses crab as 172.16.12.1 while external hosts address it as 10.104.0.19.

Systems can be addressed in three different ways. Individual systems are directly addressed by a host address, which is called a unicast address. A unicast packet is addressed to one individual host. Groups of systems can be addressed using a multicast address, e.g., 224.0.0.9. Routers along the path from the source to the destination recognize the special address and route copies of the packet to each member of the multicast group. All systems on a network are addressed using the broadcast address, e.g., 172.16.255.255. The broadcast address depends on the broadcast capabilities of the underlying physical network.

The broadcast address is a good example of the fact that not all network addresses or host addresses can be assigned to a network device. Some host addresses are reserved for special uses. On all networks, host numbers 0 and 255 are reserved. An IP address with all host bits set to 1 is a broadcast address. The broadcast address for network 172.16 is 172.16.255.255. A datagram sent to this address is delivered to every individual host on network 172.16. An IP address with all host bits set to 0 identifies the network itself. For example, 10.0.0.0 refers to network 10, and 172.16.0.0 refers to network 172.16. Addresses in this form are used in routing tables to refer to entire networks.

IP Addressing Fundamentals IP uses an anarchic and highly distributed model, with every device an equal peer to every other device on the global Internet. This structure was one of IP's original design goals, as it proved to be useful with a variety of systems, did not require a centralized management system (which would never have scaled well), and provided for fault-tolerance on the network (no central management means no single point of failure).

In order for systems to locate each other in this distributed environment, nodes are given explicit addresses that uniquely identify the particular network the system is on, and uniquely identify the system to that particular network. When these two identifiers are combined, the result is a globally unique address.

Page 69: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

67

This concept is illustrated in Figure B-1 . In this example, the network is numbered 192.168.10, and the two nodes are numbered 10 and 20. Taken together, the fully qualified IP addresses for these systems would be 192.168.10.10 and 192.168.10.20.

Figure B-1. The two parts of an IP address

Need to Know There are three levels of TCP/IP knowledge. Those who administer a regional or national network must design a system of long distance phone lines, dedicated routing devices, and very large configuration files. They must know the IP numbers and physical locations of thousands of subscriber networks. They must also have a formal network monitor strategy to detect problems and respond quickly.

Each large company or university that subscribes to the Internet must have an intermediate level of network organization and expertise. Half dozen routers might be configured to connect several dozen departmental LANs in several buildings. All traffic outside the organization would typically be routed to a single connection to a regional network provider.

However, the end user can install TCP/IP on a personal computer without any knowledge of either the corporate or regional network. Three pieces of information are required:

1. The IP address assigned to this personal computer

2. The part of the IP address (the subnet mask) that distinguishes other machines on the same LAN (messages can be sent to them directly) from machines in other departments or elsewhere in the world (which are sent to a router machine)

3. The IP address of the router machine that connects this LAN to the rest of the world.

In the case of the PCLT server, the IP address is 130.132.59.234. Since the first three bytes designate this department, a "subnet mask" is defined as 255.255.255.0 (255 is the largest byte value and represents the number with all bits turned on). It is a Yale convention (which we recommend to everyone) that the routers for each department have station number 1 within the department network. Thus the PCLT router is 130.132.59.1. Thus the PCLT server is configured with the values:

• My IP address: 130.132.59.234

• Subnet mask: 255.255.255.0

• Default router: 130.132.59.1

The subnet mask tells the server that any other machine with an IP address beginning 130.132.59.* is on the same department LAN, so messages are sent to it directly. Any IP address beginning with a different value is accessed indirectly by sending the message through the router at 130.132.59.1 (which is on the departmental LAN).

Page 70: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

MSME-Development Institute, Agra

QUESTIONNAIRE FOR MARKET SURVEY

1. Name & Address of the Dealer / Manufacture / Consumer:

2. Know the Product:

a) Physical Characteristics:

b) Alternate Uses:

c) Existence of Substitute products & their role in forming the total supplies:

d) Variation in Sizes, Models, Flavour, Material etc.:

e) Whether the product is assembled or made:

3. Know the Customers:

Uses % of sale

a) Govt. Departments

b) Industries

c) House wives

d) Children

e) Others

4. Price of the Product:

Brand in competition Rough share Sale price in market per unit

a)

b)

c)

5. Find out the nature of Demand:

a) Elastic or Inelastic

b) Constant, Seasonal, Cyclical

c) Major influencing factor

6. Know the competitors pricing policies:

a) Seasonal or special promotional price cuts

b) Margin allowed to distributors & dealers

7. Sales trend of major competitors (Last 5 years):

a)

b)

c)

d)

(Make projections for future sale on the basis of past trend)

Page 71: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

MSME-Development Institute, Agra

8. Consumption trend of customers:

Customers 1 2 3 4 5 6 7 8

a)

b)

c)

d)

(Make projections for future demand on the basis of past trend)

9. Supply Position:

Competition Total Production Production going out side the market

a)

b)

c)

10. Find out the demand & supply position of the product:

1) Short supply Extent

2) Over supply Extent

3) Normal supply

State the reasons if any for the position.

11. Know the competitors Distribution channel:

Channels % of sales covered

1. Direct

2. Distributors/ Dealers & Sub dealers

3. Commission Agent

4. Retailers

5. Trough Tenders

12. Competitors consumers satisfaction:

Brand Consumers Reaction

Consumers Consumers Complaints &

Satisfaction Dissatisfaction

1)

2)

3)

4)

Page 72: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

MSME-Development Institute, Agra

13. Competitors after sale service methods:

a) Responsibility of the Distribution channel

b) Responsibility of the manufacture

14. Know the competitors Methods/ Media:

1) News papers

2) Periodicals

3) Show Room

4) Exhibition / Fairs

5) Personal contact

6) Discounts

7) Bonus Pack

8) Any other

15. Collect information about packaging requirements:

1) Special packaging requirements of the product

2) Materials & Design

3) Sizes

16. Find reasons for the good/ bad sale performance of the competitors:

17. Identify the likely problems areas & methods of tackling them:

1) Delivery schedule

2) Specification, Quality etc.

3) Price

4) Brand Image

5) Any other specify

Page 73: ‘Computer Hardware Maintenance & Networking’msmediagra.gov.in/writereaddata/CHWNCM.pdf · ‘Computer Hardware Maintenance & Networking’ Prepared by: 34, Industrial Estate,

MSME-Development Institute, Agra

1. Product description:

2. Customers of the Product:

3. Nature of the demand & pricing of the product:

4. Demand & trend:

5. Supply position & trend:

6. Analysis of demand & supply conditions for the product:

7. Distribution channel:

8. Consumer satisfaction:

9. After sale service:

10. Competitors promotional methods:

11. Packaging requirements:

12. Reason for good-bad sale performance of competitors:

13. Influence of Govt. Policy:

14. Problems areas & methods of tackling them: