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3. Write  T  for true and  F  for false.

                    a.   Output devices are used to give commands.                                      _____________

                    b.  Microphone is used to record our sound.                                         _____________
                    c.  A scanner is used to type words.                                                _____________

                    d.  Storage devices are used to enter the data into the computer.                   _____________
                    e.  Working of a computer is based on the IPO cycle.                                _____________

                    f.  CPU works like the brain of the computer.                                       _____________

                    g.   Mouse is the processing device.                                                _____________
                    h.  Milk is an input in Mango shake.                                                _____________


                 4. Write I for input device, O for output device and P for processing device.















                 5. Answer the following:

                    a.  Name the device used to hear sounds from a computer.








                    b.  Name the devices in which you can store your work.







                    c.   Name any two input and output devices.








                    d.  What is the full form of IPO?











                                                                          Computer System Organisation - I/O devices  27
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