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    Just as ants build a colony
                     After calculating, we’ll find that the answer                 together, computers gather

                     is 15. Similarly, we give instructions to the                 information to help us solve
                     computer  and then the  computer  works                         problems and learn new

                     on the instructions and gives us the result.                               things.

                               IPO CYCLE

                     The working of a computer can be defined by three steps: input, process and
                     output.

                                     INPUT                      PROCESS                        OUTPUT

                       Input:  The information  or data  given  to  the computer  is  called  input.
                        A mouse is an example of an input device.

                       Process: The actions performed on the input to convert it into meaningful

                        information (output) is called processing. CPU is the brain of the computer.
                        It performs suitable actions on the input provided.

                       Output: The result of processing is called the output. The monitor shows the
                        result of the work done by the CPU. A monitor is an example of an output

                        device.

                             Input device                             Processing device                    Output device

                          Tick ( ) if you know this.

                          ▶  A computer works in three steps.

                          ▶  P in IPO stands for Process.

                                                                                                 Operating a Computer  23

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