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Answer        Computer  works on                                                                                                       Input – Process  - Output       cycle also known as  I P O cycle

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Question  2 .                                                        Write  the names of any two input devices

Answer                                                                                                                                                                                     1.Keyboard .       2.   Mouse

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Question  3                                                   What  is meant by output  ?

Answer .                                                                                       Output  is the result that we get after  process.

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Write, T,  for true and ,F,  for false statement

Computer is a machine.                                              [ T]  Output can be shown before processing.              [ F]  Mouse is also known as the brain of computer.  [ F]

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.  Fill in the blanks using the words given below

1. C P U    is known as the brain of computer.  2. Monitor    shows us the result after processing .  3. Mouse     and    keyboard    are the examples of input devices.

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The working of a computer is based on the… …………… cycle.             a . IPU       b.  IPO   ( √ )     c. IOP   ……………… Performs action on the input with the help of CPU.           a .  Computer  ( √ )     b. Printer  (    )     c. Mouse    ………………….  Is an input device.              a.  Keyboard   ( √ )     b. Monitor  (   )    c. Printer

Chapter 3

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