Introduction to IT (Lecture#1)

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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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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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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,etailing

Bar codes for pricingand inventory

Shipping


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#nergy

Locate oil, coal, natural gas, and uranium

Monitor the poer netor! Meter reading


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:ealth and -edicine

Monitor patients

#lectronic imaging

$iagnose illnesses

Tele-health


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,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

Introduction to IT (Lecture#1)

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