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HOW COMPUTER                                                                           CHAPTER                            You know that a computer cannot function on its own. It needs instructions to

            WORKS?                                                                                   3                                work. Let us observe how the IPO cycle works in daily life.

                                                                                                                                      WASHING CLOTHES IN A WASHING MACHINE

                                                                                                                                      In  this example, dirty clothes and washing powder are the inputs. We are

                                                                                                                                      washing the clothes as a set of processes. So, washing clothes is the process.
                                                                                                                                      We get clean clothes as the output.










                                                                       Topics Covered                      95%

            Hello Aadya! What did                                          IPO Cycle
            you learn today?                                               Computer Devices
                                                                                                                                                                                      Process
                                                                                                                                        dirty clothes and washing powder            washing the clothes                 clean clothes
                                                                                                                                                     (Input)                             (Process)                        (Output)


                                                                                                                                      CALCULATING NUMBERS

                                                                                                                                      If we are asked to add the numbers 10 and 5.


                                                                                                                                                                       10          5           +      =    ?


                            Hi, Techie! I wonder how a computer works and how all the parts                                           To add these numbers, we will use our brain to think and calculate.
                            know their functions to perform. For example, I do all the work with
                            my mother's help. Please help me and tell me how a computer works.                                                       10,5,+                           10 + 5                             15
                                                                                                                                                      Input                          Process                          Output



                                                                                                                                      After calculating, we’ll find that the answer is 15. Similarly, we give instructions
                                                                                                                                      to the computer, and then the computer works on the instructions and gives
                                                                                                                                      us the result.




                                                                                                                                                 IPO CYCLE
            One of the major differences between you and a computer is that it
            needs instructions to work and you can work on your own. Let me tell                                                      The working of a computer can be defined by three steps: input, process and
            you the working process of a computer with some everyday examples.                                                        output.


                                                                                                                                                      INPUT                      PROCESS                        OUTPUT






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