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DOS

                 DOS is a kind of CUI OS (Character User Interface Operating System) in which the user sends commands and
                 instructions to the Computer in character form i.e., by typing commands at the command prompt. The display
                 on the screen does not contain any graphics or pictures.

                 DOS was the first operating system used by IBM-compatible computers. It was originally available in two
                 versions that were essentially the same but marketed under two different names. ‘PC-DOS’ was the version
                 developed  by  IBM  and  sold  to  the  first  IBM-compatible  manufacturers.   MS-DOS   was  the  version  that
                 Microsoft bought the rights to and was bundled with the first version of Windows.






























                 Microsoft Windows

                 Windows is one of the most popular series of operating systems developed by Microsoft Corporation. Each
                 version of Windows includes a graphical user interface ( UI), with a desktop that allows users to view files
                 and folders.

                 In Windows, the user doesn’t need to remember all the commands but needs to recognize the graphical
                 representation of the application on the screen in order to use them. Windows 7 has a Graphical User
                 Interface (GUI) which means you do not have to remember all the commands. It allows you to run several
                 programs at the same time.

                 The ease of its use has made Windows a very popular Operating System among users. Windows 8 in 2012
                 offered a ‘Start’ screen with applications appearing as tiles on a grid and the ability to synchronize settings,
                 so users could log on to another Windows 8 machine and use their preferred settings. In 2015, Microsoft
                 released Windows 10, which came with Cortana, a digital personal assistant like Apple’s Siri and the Web

                 browser Microsoft Edge which replaced Internet Explorer.
                 Among all its versions, Windows 11 is the  latest version of the  Windows Operating  System released on
                 October 5, 2021.








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