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We  know  that  a  computer  is a  man-made  machine.  Have  you  wondered  how  a
                  computer works? In this chapter, we are going to learn how a computer works.

                  IPO Cycle                                                                                                                   2.


                  Have you seen your mother making mango shake for you? This is what she does to
                  make the mango shake.

                  1. She puts the mango pieces, sugar and milk in the blender. (This is the input.)
                  2. The blender mixes all the things. (This is the process.)                                                                               Debit Card                  ATM Machine                       Cash
                                                                                                                                                              (Input)                    (Processing)                   (Output)
                  3.  She pours the mango shake in the glass. Mango shake is ready to drink. (This is the
                     output.)                                                                                                                                                                                     Information Literacy
                                                                                                                                                   Quest                                                          Interdisciplinary Learning


                                                                                                                                                 Write I for Input, P for Process and O for Output for the given pictures.






                                                                                                                                                  1.
                                   INPUT                                PROCESS                        OUTPUT


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



                                                                                                                                                  2.
                         The letters, numbers, symbols we give to the computer are called data.



                  The instructions that we give to the computer are called input. The working of the
                  computer is called processing and the result we get is called output.
                                                                                                                                            IPO Devices
                  Thus, a computer works in three steps:
                                                                                                                                            A computer is made up of many parts. These parts are also known as devices.
                                      INPUT → PROCESS → OUTPUT                                                                            Input Devices


                  This is also called IPO cycle. Let us look at some more examples of IPO cycle.                                            The devices that are used to enter data into the computer and give orders are called
                                                                                                                                            input devices. Some of the commonly used input devices are keyboard and mouse.



                    1.





                           Pizza base and toppings               Baking                       Hot pizza
                                   (Input)                      (Process)                     (Output)
                                                                                                                                                            Keyboard                 Mouse


                       8     Computer Genius (V2.1)-II
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