SUBJECT

Information and

communication technologies

Title of presentationComputer Software

Definition of

SOFTWARE

The set of instructions that

operates various parts of the hardware is called as software

It is also called as computer program

The hardware needs software for execution

Types of

software

System software Application software

Mainly there are 2 types of a software

Programs that generally perform the background tasks

in a computer These programs talk directly to the hardware

System software

1) Operating system2) Device driver3) Utilities4) Language translators

Types of a system software

Control overall operation of a computer Interacts directly with a computer All softwares interact with the computer through the

operating system Control the internal functions of a computer Maintain files on the disk drive Manages the screen Directs the processor to do work Examples : windows, Mac OS, LINUX, UNIX, DOS etc

1) Operating system

Interact directly with hardware Facilitates communication between the computer and

its devices Takes instruction from computer and converts them into

the device language form Examples : VGA driver etc

2) Device drivers

Perform system management and maintenance Performs a particular function related to computer

system managenent Examples : antivirus software etc

3) Utilities

Used to develop or maintain programs Translate the user language to machine language Examples : compiler, interpreter

4) Language translators

Programs that generally interact with the user to

perform work that is useful to the user Generally talk to the hardware through the assistance

of a system software Interact directly with the user for the performance of a

certain type of work

Application software

1) Scientific softwares 2) Graphics softwares3) Business softwares 4) Productivity softwares5) Entertainment softwares 6) Educational softwares7) Engineering softwares 8) E-commerce softwares9) Enterprise resource planning softwares10) Spreadsheats softwares11) Presentation development softwares12) Data Base softwares13) Communication softwares

Types of application software

Used in scientific programs Examples : MathCAD

1) Scientific softwares

Vector graphics moving graphics moving pictures static pictures Examples : paint, photo shop, corel draw etc

2) Graphics softwares

A major requirement of business Examples : payroll, general ledger etc

3) Business softwares

Most popular category in terms of licenses sold word processing, address labels, newsletters and

magazines etc are common examples

4) Productivity softwares

music and video players Examples : Win Amp, real player, windows media player

etc

5) Entertainment softwares

Great resource of useful information in intereting form Examples : electronic encyclopedis, online learning like

virtual university etc

6) Educational softwares

Used to design airplanes etc Examples : CAD (computer aided design )

7) Engineering softwares

Ability to handle thousands of transaction

simultaneously Examples : ebay, amazon etc

8) E-commerce softwares

Shortly called as ERP Very large scale complex and expensive Used in supermarkets, warehouses Examples : oracle

9) Enterprise resource planning softwares

Electronic replacement for ledgers Consists of cells in rows and columns examples : Ms Excel etc

10) Spreadsheats softwares

Used to prepare multimedia material for lectures Display key points examples : Ms power point

11) Presentation development softwares

Used by organizations to maintain their recoird or to do

transactions Examples : Ms access, SQL etc

12) Data Base softwares

Used for communication examples : browsers, messengers etc

13) Communication softwares

THE END