Saturday, April 23, 2011

Sofware

Software is a program which consists of a set of instructions that tells the computer how to perform a specific operation

Type of software

SYSTEM SOFTWARE

ASPECT

APPLICATION SOFTWARE

o A system software is a program that controls or maintain the operations of a computer and its devices

Definition

  • all programs that perform specific tasks for users.

o Microsoft Windows, MS-DOS and MAC OS.

Examples

  • Microsoft Word, Microsoft Excel, Outlook Express and Internet Explorer.

o Enables the computer to function properly.

Usage

o Enables users to work efficiently with documentation such as letters, accounting reports and presentations.

o Compulsory- each computer must have a system software to function

Need

o Optional- depends on usage and needs. Without an application software, the computer is still able to function.

o Each computer only needs one system software.

Number of Software

o Each computer can have more than one application software.

o Independent- system software can function without an application software.

Dependency

o Dependent- application software cannot work without system software.

o Provides the environment in which the applications run.

Function

o Provides the environment to enable users to accomplish specific tasks.




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