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Chapter Profile
                    Disk Defragmenter: The memory of a computer is divided into small blocks. The files are stored
                    in continuous blocks of space in the hard disk. When a file is deleted from the computer, a part
                    of that 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  performance of  the
                    computer.
                                                                                 Fragmented Disk    Defragmented Disk
                     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 these software.
                                                                                                    Antivirus

                                Clickipedia




                     Booting is a process that loads the operating system and prepares the system for use.





                        APPLICATION SOFTWARE


                 It  is a program designed  to help  users perform  specific tasks. It  is designed  to be  used  by
                 end-users. 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 Management             Multimedia
                       Processors          Software        Systems (DBMS) Software           Processors

                               Spreadsheet       Graphics Software             Desktop Publishing
                                Software                                         (DTP) Software


                 General Purpose Software

                 General Purpose Software is a type of software that can be used for a variety of different tasks. It
                 is not designed for one specific task, but can be helpful for many different persons and activities. It
                 can be used for both commercial and non-commercial purposes.



                                                                                                   Types of Software  9
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