Computer Software

COMPUTER SOFTWARE
Computer software is the key to productive use of computers. Software can be categorized into two types:-

• Operating system software
• Application software.

OPERATING SYSTEM SOFTWARE:-

• Operating system software tells the computer how to perform the functions of loading, storing and executing an application and how to transfer data.
• Today, many computers use an operating system that has a graphical user interface (GUI) that provides visual clues such as icon symbols to help the user.
• Microsoft Windows 98 is a widely used graphical operating system.
• DOS (Disk Operating System) is an older but still widely used operating system that is text-based.

APPLICATION SOFTWARE:-
Application Software consists of programs that tell a computer how to produce information. Some of the more commonly used packages are:

• Word processing
• Electronic spreadsheet
• Database
• Presentation graphics

WORD PROCESSING:-

• Word Processing software is used to create and print documents.
• A key advantage of word processing software is that users easily can make changes in documents.

ELECTRONIC SPREAD SHEETS:-

• Electronic spreadsheet software allows the user to add, subtract, and perform user-defined calculations on rows and columns of numbers.
• These numbers can be changed and the spreadsheet quickly recalculates the new results

DATABASE SOFTWARE:-

• Allows the user to enter, retrieve, and update data in an organized and efficient manner, with flexible inquiry and reporting capabilities.

PRESENTATION GRAPHICS:-

• Presentation graphic software allows the user to create documents called slides to be used in making the presentations. Using special projection devices, the slides display as they appear on the computer screen.