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Some other application software are:

                    Word is used for typing letters, applications, articles, and essays.
                    PowerPoint is used for creating presentations.

                    Adobe Photoshop is used for creating and editing photos and designs.
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                  The first computer that could be carried along was invented in
                  1981 by Adam Osborne.





                    WORKING OF A COMPUTER

                 Most of the machines that you use in your daily life, such as a juicer, washing
                 machine, etc., work according to the commands given by you.

                 Let’s read about how a computer works.

                 IPO Cycle

                 A computer works on the IPO (Input-Process-Output) cycle.


                                   INPUT                    PROCESS                    OUTPUT


                                    3, 6, +                    3 + 6                         9


                                                  Data                   Information












                                    Keyboard                         CPU                      Monitor
                 Input


                 The data and instructions we provide to a computer are called input. The device
                 used to send input to a computer is called an input device.
                 Process

                 The computer processes the data entered by the user and converts it into

                 meaningful information using the CPU (Central Processing Unit). This process
                 of converting data into information is known as processing.




                                                                                           A Computer System     13
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