Page 31 - CA 165 ver 1.0 Class 9
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SOFTWARE

                 Computer can neither think nor work on its own. It has to be provided with a set of pre-defined instructions
                 which are written in a computer language which it can follow. Such sets of instructions are known as
                 ‘Programs’. A set of organized programs meant for specific purpose is known as ‘Software’. Software is an
                 intangible part of a computer which provides intelligence to the computer.

                 Software can be broadly classified as:
                 l    Application Software

                 l    System Software


                                                                Software




                           Application                           System                          System Utility
                            Software                            Software                           Software


                         Application
                           Package
                                                  Language                  Operating
                                                  Processor                  System
                       Specific Purpose
                        Package (Customized)
                                                                                                      Winzip
                                                                                                    Anti-Virus
                           Compiler               Interpreter              Assembler               Disc Manager


                 Application Software

                 Application Software refers to programs which are designed to accomplish particular type of tasks to
                 meet a user’s specific needs. Application software can be classified into two categories:
                 l    General Purpose Application Package       l  Specific Purpose Application Package
                 l    Customised Package

                 General Purpose Application Package

                 General Purpose Application packages are typically designed to accomplish various types of tasks which
                 meet the needs of general user. Some examples of general purpose application packages are:

                 Word Processing Package
                 A word processing package enables the user to type and manipulate text to create documents. It also
                 enables to create, edit, print and save documents. For example:  MS-Word, Word Star, OpenOffice Writer,
                 etc.

                 Spreadsheet Package
                 Spreadsheet package helps in representing data in form of tables and enables users to perform
                 calculations and analysis by making graphs, tables, charts, etc. For example: MS-Excel, Lotus 1-2-3,
                 OpenOffice Calc, etc.


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