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System Software

                 System software is a software which is compulsory for the computer. Without a system software, computer is just
                 a dummy without any use.
                 It is always running in the background of your device and helping the user to smoothly use the computer system.
                 For example: Operating systems like Windows, Mac OS, DOS, etc.

                 Application Software

                 Application software is a set of programs that helps the programmers to perform a specific task. It can be installed
                 on a computer or mobile device, depending on the needs of the user. For example: Word deals with documents,
                 Spreadsheets with calculation, Presentation software for creating and running presentations.

                 Utility Software


                 Utility software  does housekeeping functions like  backing up disk  or scanning/cleaning  viruses or arranging
                 information etc. They ensure the smooth functioning of the computer.

                 If you switch on the computer, you are using the physical parts of the computer called hardware. The set of
                 changes you see on your screen before it displays your login screen that your operating system is getting activated
                 and ready to be with you till you are using a computer. When you work on a LibreOffice document, spreadsheet,
                 presentation, etc. then you are using application software installed in your computer. When the system backs up
                 your data or checks for malware, you are using utility software.

                         Operating System


                 Operating System (OS) is a system software which is compulsory for the computer. Without an operating system, a
                 computer is just a machine with no usage. It works as a manager of the computer and helps you to utilise computer
                 hardware in an efficient manner.

                                                            Computer Games
                                                                                Internet
                                                              Utilities        Browsers


                                                                      Operating    Application
                                                    Hardware
                                                                       System       Software
                                                               System
                                                               Software
                                                                         Databases


                 Some of the important functions performed by an operating system are:
                 •  It works as an interface between the user and the machine.
                                                                                                              User
                 •  It works as a device manager. It keeps a track that all the devices are functioning properly
                   and are available to the user whenever needed.
                                                                                                           Application
                 •  It manages the software of the computer.
                 •  It manages the computer memory and keeps track of the memory in use and free so that
                                                                                                        Operating System
                   it is available to the user whenever needed.
                 •  It decides which process gets the processor time for execution, when and for how much
                   time.                                                                                    Hardware

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