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8/9/2019 Introduction to IT (Lecture#1)
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Introductionto
InformationTechnology
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Course Assessment
Quizs and Assignments 20%
Presentation 15%
Mid Term 25%
inal !"am #0%
Total $ 100%
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Policies
Turn of your cell phone during lecture
You are responsible or what is coveredin class even i you dont show up
Deciency in attendance may lead totermination or relegation
You are encouraged to help each otherwith your homework assignments but
you must turn in your own work you are ound to be cheating! you
will ail at least the assignment " testand perhaps the entire class
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Policies
you have any learning disabilitiesor special needs! please let me knowin advance through email or personal
meeting
#very second lecture there will be anAssignment which you will submit in
ne$t class %ui&&es are unannounced
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'ecture ( )
IntroducingComputer
Systems
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normation Technology
The branch o #ngineering that dealswith the use o Computers and
Telecommunications to retrieve!store and transmit inormation
Any computer based tool that peopleuse to work with inormation *support the inormation *inormation processing needs o an
organi&ation
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normation Technology
Technology
A set o tools that enables you towork more e+ciently and efectivelywith inormation
,ationally speaking people andinormation are the most importantresources within -.! not Technology
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0nderstanding Your Computer
Data
The raw acts andgures that areprocessed intoinormation
Information
Data that has been summari&edor otherwise manipulated or
use in decision making
The purpose o a computer is to process datainto inormation/
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1hat is Data2
Denition-1:A collection of raw facts that descries a
phenomenon!
"#amples
Current temperature
Price o a movie rental
Your age etc$
Denition-%:3A message which source wants to communicate to
the receiver4
e/gTe$t! 5oice! mage! movies! -usic etc
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1hat s normation2
Denition:
t has the particular meaning within a specicconte$t
#very surprising"new thing is inormation
,eduction o redundancy in data
&or e#ample if you are trying to decidewhat to wear' the current temperature isinformation ecause it is logical help to
your decision$
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DataCollection o raw
unprocessed acts!gures! and symbols
rom various sources
normationData that isorgani&ed!
meaningul! anduseul
1hat are data and inormation2
Data 5s/ normation
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Informati
on&actspresente
d in ameaningful
fashion$
Technolog
yA set of tools thatenales us to wor(with information
)ardwareInput de*ices+utput de*icesTelecommunication de*icesStorage de*ices
SoftwareApplication softwaree$g$,S-oce S./'media software'usiness softwareSystem software
e$g$ operatingsystem software'utility software
0ersonalComputers
/ireless
etwor(sSatellites
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normation Technology
Technical denition:
The capaility to electronically
input' process' store' output'transmit' and recei*edata andinformation' including text,
graphics, sound' and video' aswell as the aility to controlmachines of all (indselectronically$!
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Dimension of Information
0ersonal
Time:-Access to ino when you need itand inormation that describes the time
period you are considering2ocation:-Access to inormation nomatter where you are
&orm:-normation in a orm that ismost usable and understandable andinormation that is ree o errors
e/g Audio! Te$t! 5ideo! Animation! 6raph!
Deective products etc
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Dimension of Information
+rgani3ational
normation 7lows89 0p! Down! :ori&ontal!inward"outward
;
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enets o T
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enets o T
Speed Computers can perform comple#
calculations' recall storedinformation' transmit informationfrom one location to another in asplit of a second$
Consistency A computer can perform a tas( the
same way e*ery time$
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enets o T
0recision Computers can detect minute
di4erences that people can not see$
In automoile manufacturingemedded computer system helpsprecise placement of a part$
5eliaility 5eliaility comes with speed'consistency and precision
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1hat is a .ystem2
A system isB A set o interrelated components 1ith a clearly dened boundary
1orking togetherTo achieve a common set o ob@ectives y accepting inputs and producing
outputs
n an organi&ed transormation process
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asic 7unctions o a .ystem
nput Capturing and assembling elements that
enter the system to be processed
ProcessingTransormation process that converts
input into output >utput
Transerring transormed elements totheir ultimate destination
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1hat is an normation .ystem2
An organi&ed combination oB
People
:ardware and sotware
Communication networks Data resources
Policies and procedures
This systemB
.tores! retrieves! transorms! anddisseminates inormation in an organi&ation
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1hat is an normation .ystem2
A system that collects! processes!stores! analy&es! and disseminatesinormation/
Collectnputs
ProcessAnd
Transorm
Produce>utputs
.tore
Data
nstructions
Calculations
,eports
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.999#$amples
+nline ill payment system ata an(
A support wesite of a product
Computer system used toprocess orders for a usiness
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-anagement normation .ystem
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1hat -akes normation 0seul2
t is accurate 7ree o errors
t is complete ncludes everything
needed t is e$ible
Can be viewed invarious ways
t is reliable
,esults are alwaysconsistent
t is relevant Applies to the issue
under study
t is timely Available when
needed
t is veriable asis or results can
be traced
t is accessible All those who need
the inormation canget to it
t is secure 7ree rom
contamination
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1hat .hould usiness
Proessionals now2
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-easuring T .uccess
#+ciency
-inimi&e cost! time! and use oinormation resources
#fectiveness
.upport business strategies
#nable business processes
#nhance organi&ational structure andculture
ncrease customer and business value
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Developing . .olutions
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Components o an .
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1here Computers Are 0sed8
#ducation
Teaching and
testing aid Learning by doing
Computer-based
instruction
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1here Computers Are 0sed8
,etailing
Bar codes for pricingand inventory
Shipping
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1here Computers Are 0sed8
#nergy
Locate oil, coal, natural gas, and uranium
Monitor the poer netor! Meter reading
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1here Computers Are 0sed8
:ealth and -edicine
Monitor patients
#lectronic imaging
$iagnose illnesses
Tele-health
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1here Computers Are 0sed8
,obotics
%erform &obs that are dangerous for
humans
"actory or!
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T n .upport o usiness
Credit Card! Debit Card! AT-Card
ar Code .ecurity Access
#9commerce
>n9'ine Conerences
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T n .upport o usiness
+perational "#cellence
1ithin the conte$t o e+ciency
Doing things right
n the least amount o time At the least e$pense
1ith the ewest numbers o errors
>ptimi&ing the use o resources
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Thank You