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different versions like Windows 98            , Windows 2000        , Windows XP      , Windows Vista      ,

                           ,
            Windows 7 Windows 8, Microsoft Windows 8.1 and                           Windows 10 is the  latest
            version.


















                   Windows 98                Windows 2000               Windows XP                Windows Vista

















                    Windows 7                  Windows 8          Microsoft Windows 8.1            Windows 10


                                         FUNCTIONS OF OPERATING SYSTEM

            The operating system controls, processes and approves everything that happens

            on your computer. The basic functions of an operating system are :


            Performs Basic Computer Tasks : Operating System performs basic computer
            tasks such as managing various hardware devices such as mouse, keyboard and

            printer.

            Provides User Interface : User interface means how the user interacts with the

            computer to perform various tasks.


            Booting : The process of starting or restarting the computer is known as booting                           .
            There are two types of booting in the computer–


            Cold Boot when computer is switched OFF, the process of starting the computer
            is called Cold boot     .




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