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As you know, a computer requires an operating system to work. Without it, we cannot
                  start a computer and work on it. An operating system is a system software that controls
                  all the activities of a computer and provides an easy interface to the computer.

                  In  this  chapter,  we will  learn  about  Windows  7  operating  system.  Some  other
                  operating systems are Linux, Unix, Mac OS and MS DOS.




                           WINDOWS 7


                  Windows 7 is the most popular operating system launched by Microsoft. It has
                  a Graphical User Interface (GUI) which allows users to interact with computers
                  through buttons, icons or dialog boxes. Windows 11 is the latest operating system

                  launched in 2021.




                                 First operating system invented


                  FEATURES OF WINDOWS 7

                  Some features of Windows 7 are:

                     It is user-friendly operating system.
                     It has a  GUI which means you do not need to remember all the commands.

                     It allows us to run several programs at the same time.


                  STARTING WINDOWS

                  When we switch  on the  computer,
                  Windows  operating  system  is loaded
                  into  the  computer’s  memory.  The
                  process  of loading the  operating

                  system after the computer is switched
                  on is known as booting. During booting,
                  the computer  performs necessary
                  actions  which makes it  ready  to  use.
                  After booting, a screen appears which
                  is known as the login screen.

                  After some time the screen appears, which is called the desktop. Let’s learn about
                  the desktop and its components.








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