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03                           WORKING OF A



                                                                                               COMPUTER














                                 Your Aim

                                 to learn about:
                                         IPO Cycle                   Input
                                          Process                      Output



                  We know that computer is a machine. It works according to the commands or
                  instructions given by us. In this chapter, we are going to learn how a computer
                  works.

                      IPO CYCLE

                  Machines are man-made things. They work on our instructions and give us the
                  result/output.

                  Look how a washing machine works:


                              Input                            Process                            Output











                          Dirty clothes                       Washing                         Clean clothes


                  Similarly, we give instructions to the computer, it works on the instructions and
                  gives us the result.


                              Input                            Process                            Output

                             2, 3, +                            2 + 3                                 5

                           Numbers,
                                                              Addition                             Result
                           Instruction




                  18      Modular (Ver. 1.1)-II
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