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Some of the famous versions are, Windows 3.0, Windows 95, Windows NT, Windows 2000, Windows7, Windows 8.1,
              Windows 10 and the latest in the market is Windows 11.



                           Brainy Fact

                   Windows  95 was the second most installed  system software on computers in  1995, video game
                   Doom was first.


              Linux

              Linux is an open source operating system having UNIX like features. It was originally created by Linus Torvalds in
              1991. It is also known as the Operating System of the future.
              Some of its important features are:




















                                                            Linux (Ubuntu)
                 • It has a graphical user interface.
                 • Free and open source operating system. Anyone with GNU General Public License (GPL) can run, modify and
                even sell the software.
                 • It supports multiuser and multitasking. Several users can run multiple programs or processes simultaneously on
                one system.
                 • It has a hierarchical file system to represent information.

              Different variants of Linux are available in the market like Red Hat, Ubuntu, Arch Linux etc.



                           Brainy Fact

                    Only 2 out of top 500 Supercomputers run on Windows, while 485 run on Linux.




              Mobile Operating System

              Mobile Operating Systems are designed to run the applications and other programs on smartphones, tablets, smart
              watches or other portable devices. It is a combination of an operating system and communication technology.
              Some of the important features are:
                 • It has a graphical user interface with menus and buttons supporting different types of apps.

                 • It has a strong multitasking feature.


                    88      Touchpad Artificial Intelligence (Ver. 3.0)-IX
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