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Processing Device     REFRESH

 The device that works on the input is called processing
                       A computer works in three steps: Input → Process → Output. This is also called
 device. CPU is the main processing device.   IPO cycle.
 CPU stands for Central Processing Unit. It works      The devices that are used to enter data into the computer and give orders are called

 like the brain of a computer. CPU is fixed inside the   input devices. Some input devices are keyboard and mouse.
 CPU box.
 CPU  CPU Box          The  device  that  works  on  the  input  is  called  processing  device.  CPU is  the  main
 Output Devices       processing device.

                       The devices that are used to get the results are called output devices. Some of the
 The devices which help us to get the results are called output devices. Some of the
                      commonly used output devices are monitor, printer, headphones and speakers.
 commonly used output devices are monitor, printer, headphones and speakers.




                                                  TeCh Ready





                 A.  Tick ( ) the correct option.
 Monitor  Printer  Headphones  Speakers
                    1.  Which of the following works like the brain of the computer?



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


                    2.  Which of the following is not an output device?



                         (i)                                             (ii)





                       (iii)                                             (iv)



                    3.  Which of the following is an input device?



                         (i)                                             (ii)





                       (iii)                                             (iv)





                                                                                     Working of a Computer     11
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