itc lecture 1

8/13/2019 ITC Lecture 1

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Discover ing Compute rs

Int roduc t i on t o Comput i ng

INTRODUCTION TO

COMPUTERS

Course Out l ine & Objec t ives

Computer Literacy

Integration Literacy

Information Literacy

Computer Organization

Introduction to Hardware

Introduction to Software

Introduction to processing


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Computers are present in every aspect of daily living inthe workplace, at home, in the classroom, and for

entertainment

WHAT I S A COMPUTER ANDWHAT DOES IT DO?

An electronic machine thatcan accept data (input),manipulate the dataaccording to specified rules(process), produce results(output), and store theresults for future use

An extremely fast electronicdevice operating under the controlof instructions stored in its ownmemory which processes data

into useful information.http://en.wikipedia.org/wiki/Computer


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WHAT DOES IT DO?

Input Accepts data / inputdata / input

Raw facts, figures, and symbols

Processing

Processes data into

informationinformation

Data that is organized, meaningful,

and useful

OutputInformation produced and storesresults

Processing data into information


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TH E COMPONENTS OF A

COMPUTER

TH E COMPONENTS OF A

COMPUTERVariety of hardware components that

work together with software to carry

perform calculations, organize data, and

communicate with other computers

Input devices

Output devices

System unit

Storage devices

Communications devices

TH E COMPONENTS OF ACOMPUTERTH E COMPONENTS OF ACOMPUTER


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Bot h Sides o f t he Syst em Uni t


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power supply

ports

drive bays

processor

memory

sound card

video cardmodem card

network card

FEW DEFINITIONSHardware the physical equipment that

makes up the computer

Software a series of instructions that tellsthe hardware how to perform tasks

Storage holding data and information forfuture use

Information processing cycle the cycle ofinput, process, output, and storage

User a person who communicates with thecomputer


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COMPUTER SOFTWARECOMPUTER SOFTWARE

Computer programs

A series of instructions that tells the

hardware of a computer what to do and

how to do it

Stored on various storage media

Installing programs

Running programs


System software

Application software

Utility programs


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System software

Operating system

Microsoft Windows

Mac OS


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System software

User interface

Graphical user interface (GUI)

Microsoft Windows

Mac OS



Software suites

Word Processing

Spreadsheet

Database

Presentation graphics

Communication

AppleWorks is a popular

suite used by teachers and

students primarily on

Macintosh computers


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Packaged software

Development softwares

Packaged software is available

at computer stores, office

equipment suppliers, retailers,

and the Internet



Custom software

Shareware, freeware, and public

domain software

Software development

Computer Programmers

Systems Analyst


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Utilities

en.wikipedia.org/wiki/Utility_software

Configure

optimize and maintain

the computer.

help analyze

WHY IS A COMPUT ER SOPOWERFUL?WHY IS A COMPUT ER SOPOWERFUL?

Speed

Reliability

Accuracy

Storage

Communications

Network

Electronic mail


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Technology is everywhere

Technology can support learning

Computers support communicationsbeyond classroom walls

Support of national and internationalorganizations

WHY USE COMPUT ER

TECHNOLOGY IN EDUCATION?

WHY USE COMPUT ER

TECHNOLOGY IN EDUCATION?

Elem ents o f an Inform at ion

System

Step 1.People develop

procedures for

processing data

Step 2.People use

software to enter

data into computer(hardware)

Step 3.Software processes data and

directs hardware to store and

or output information

People

Procedures

Data

Software

Hardware


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Com put er Appl icat ions in Soc ie t y

examplesof computer applicationsin society?

Education

Finance

Government

Healthcare

Science

Publishing

Industry

Advant ages & Di sadvant ages of

Computers

p. 10- 11

What are the disadvantages of usingcomputers?

Next

Violation ofPrivacy

Impact on nvironment

Impact onLabor Force

Health Risks


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CHAPTER SUMMARYCHAPTER SUMMARY

Explain the difference between computerand information

Define and describe computers and theirfunctions

Identify the major components of acomputer

Explain the four operations of the

information processing cycle: input,process, output, and storage

itc lecture 1

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