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                     HOW DOES A COMPUTER WORK?

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


                                           INPUT               PROCESS               OUTPUT


                                           3, 6, +               3 + 6                   9

                                                      Data               Information







                                         Keyboard                   CPU                Monitor


                    Input: The data and instructions we give to a computer are called Input.

                    Process: A computer takes action on the data entered by the user. It converts the

                    data into meaningful information with the help of the processor, which is the
                    CPU. This conversion of data into information is called processing.

                    Output: The result which we get after processing the data and instructions is

                    called output.


                    Recap



                        A computer accepts data and instructions through input devices.

                         A computer converts the input into meaningful information through the processing
                       device.

                         A computer displays the results of the processed data through the output
                       devices.

                         System  software  controls  and  manages  the  overall  activities  of  a  computer
                       system.

                        Application software is used to perform a specific task.

                         A computer works on the IPO (Input-Process-Output) cycle.
                         Storage devices are hardware devices used to store data.







                                                                                        A Computer System         11
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