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space becomes free. When a new file is saved on the computer, some part of it
                  is saved on the first available free space in the memory. After some time, the files

                  get stored in various fragments which slows down the speed of the computer. The
                  Disk defragmenter  organises  the  fragments  of  files  into  continuous  blocks  to
                  improve the performance of the computer.
                  Virus Scanner

                  It is  used to scan the computer for viruses among

                  files  and  folders.  It  scans  the  disk  each  time  you
                  insert it into a computer or whenever the computer
                  is booted. It is also called antivirus software. Quick
                  Heal, Norton, etc. are examples of antivirus software.


                      APPLICATION SOFTWARE

                  It is a program designed to help users perform specific tasks. These tasks can be
                  personal, educational, business-related, etc. Generally, people refer to application
                  software as software.

                  Application software can be broadly classified into two categories:

                                                          Application Software



                               General Purpose Software                                      Customised Software





                        Word            Presentation          Desktop Publishing              Multimedia
                      Processors          Software               (DTP) Software               Processors


                             Spreadsheets     Database Management             Image Processing
                                                  Systems (DBMS)                   Software
                  General Purpose Software


                  General purpose software are those which have not been developed according to
                  the needs of a particular organisation or a particular industry. It can be used for both
                  commercial and non-commercial purposes. The general purpose software can further

                  be classified into seven different groups on the basis of their use. These are:
                  Word Processors

                  Word Processors are used to create, edit, format and print text documents. They are

                  commonly used in businesses, schools and at home. Microsoft Word is the most
                  commonly used word processor. Some other word processors are WordPerfect,
                  Writer and Kword.


                  22     iPRIME (Ver. 2.2)–V
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