Igcse Ict Year11 Week3day3

8/9/2019 Igcse Ict Year11 Week3day3

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Chapter 2: Input & OutputDevicesPart 1: Manual InputDevices

Part 2: Direct Input DevicesPart 3: SensorsPart 4: Output DevicesPart 5: Control Devices


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Chapter 2: Input & OutputDevices

Part 1: Input DevicesKnow the purpose of and be ab e toi entify di!erent "anua input devices#

$nderstand the uses of each "anua inputdevice#

%e ab e to iscuss a vantages andisa vantages of each "anua input

devices#


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Part 1: Input DevicesDe nition: 'ardware devices that a ow datato be entered into a co"puter#

Part of the 4 "ain co"ponents of aco"puter s(ste"#

Input data )et data into the co"puter


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Part 1: Input Devices *wo di!erent t(pes of input devices:

1! Manual Input Devices "ata is input into the computer

#y han $people have to omost of the %or '

(! Direct Input Devices )ata is input into the computerirectly #y a machine* evice

$minimal input #y people'


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Part 1: Input Devices1! Manual Input Devices


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Part 1: Input Devices1! Manual Input Devices+e wi see each "anuainput devices accordin) to

these e e"ents:1! Information(! +ses

,! - vantages.! Disa vantages


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Infor"ation: used to input te/t0num#er an instructions #

$ses: used to input data intoapplications and comman s #

,dvanta)es: fast entry of te/t0easy to use0 instantly appears onscreen0 uic ly chec !

Disadvanta)es: wrist and handprob e"s- painfu - enterin) data iss ow co"pare to auto"atic "ethods

Ke(pad


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Infor"ation: enterin) nu"bers into aco"puter s(ste" ./u"eric "eansnu"ber0- si"p e te t and s("bo s#

$ses: ,* .,uto"atic *e er achine0- *e ephone- Chip and Pin Devices

,dvanta)es: faster than ey#oar 0small"can easily 2t on smaller

evices

Disadvanta)es: peop e with ar)ehands hard to use- di cu t to enterte t infor"ation#

/u"eric Ke(pad


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Infor"ation: contro a pointer .cursor0on a screen

$ses: re6uent ( used with 3+I )use to input comman s #yselecting icons

Pointin) Devices


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Infor"ation: as a rep ace"ent to"ouse

$ses: sa"e uses as "ouse

,dvanta)es: easier than 456TYey#oar 0 #ulit into laptop0

%on7t get clogg %ith irt

Disadvanta)es: "ore di cu t tocontro - wrist and hand prob e"s

Pointing Devices


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Infor"ation: ba is on the top-rotatin) the ar)e ba

$ses: sa"e uses as "ouse but "oreco"fortab e to use ."ore er)ono"ic0

,dvanta)es: more accurate0 nolimit of movement

Disadvanta)es: "ore e pensive-di cu t to earn

Pointing Devices


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Infor"ation: contro other devicesusin) infra red si)na s#

$ses: 'o"e entertain"ent s(ste"s:'i i s(ste"s- D7D 8 % u 9a( P a(ers-

ate ite s(ste"s- overheadpro;ectors#

,dvanta)es: useful of people %ithisa#ility0 can #e use in unsafe

environment

Disadvanta)es: infra red can beco"eb oc


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Part (: Direct Input DevicesKnow the purpose of and be ab e toi entify di!erent "anua input devices#

$nderstand the uses of each "anua inputdevice#

%e ab e to iscuss a vantages andisa vantages of each "anua input

devices#


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Part (: Direct Input DevicesMagnetic

Stripe 6ea erChip an PI8

6ea er9arco e6ea er

Optical Mar6ea er $OM6'

Optical

Character6ea er

Magnetic InCharacter

6ecognition$MIC6'


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Part (: Direct Input Devices

65M5M956

Direct Input Devices o notre uire much humaninteraction to get their

ata into a computer


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Part 2: Direct Input Devices1# a)netic tripe 9eader

5lements 5/plainationInformation

9ead infor"ation fro""a)netic stripe = %an

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Igcse Ict Year11 Week3day3