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Chapter Profile
                                                                                         Chapter Profile
                                                                                         Chapter Profile
                                                                                         Chapter Profile
                  6 1                                                                 Working of a Computer
                                                                                        Input Devices
                                                                                                 Processing Device


                            The Computer—                                                          Output Devices


                                 An Overview













                 As you know, a computer system is made up of two types of parts—Hardware and Software.

                    The parts of a computer that we can see and touch are called Hardware.

                     A computer needs instructions to do anything. These step-by-step instructions are called
                    software.


                        WORKING OF A COMPUTER


                 A computer works on the IPO (Input-Process-Output) cycle. It receives input from the user
                 through input devices, processes the input using the CPU, and gives back the output using
                 output devices. This process is known as the IPO cycle.














                           Input devices                    Processing device                 Output devices
                                                               IPO Cycle

                        INPUT DEVICES


                 A computer accepts data and instructions from you through input devices. Data can be in

                 the form of numbers, text, sound or graphics.











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