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    Processing device

                       Output devices

                     INPUT DEVICES

                     Input devices give instructions to the computer. Some input devices are:

                                                    Keyboard           Mouse

                     PROCESSING DEVICE

                     Processing device usually works on the input. A CPU
                     is the processing device of a computer. CPU stands

                     for Central Processing Unit.

                                                                                                CPU           CPU box/
                     OUTPUT DEVICES                                                                            cabinet

                     Output devices show the result of all the work done on the input. The result is

                     called the output.

                     Some output devices are:

                                    Monitor               Printer            Speakers

                                       Imagine, you have a magical input device that can take any object
                                       from the real world and put it into your computer. What would you
                                       put in, and what would you want the computer to do with it?

                            Hashtag

                          #Booting: Process of starting a computer and making it ready for use
                          #Calculate: To find out something by using mathematics

                                                                                                 Operating a Computer  25

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