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Timeline


                           A computer works in three steps: Input        Process      Output. This is also called IPO
                          cycle.
                           A computer uses its input devices, processing device and output devices to follow
                          each stage of the IPO cycle.







                        Choose the correct option.


                        1.  What is the input in making pizza?

                                 a.  Water                                     b.  Toppings

                                 c.  Baking                                    d.  Hot pizza

                        2.  What is the correct sequence of the working of a computer?

                                 a.  IPU                                       b.  IOP

                                 c.  IPO                                       d.  OIP


                        3.  What is the result after processing called?
                                 a.  Input                                     b.  Output

                                 c.  Processing                                d.  Instruction



                         Tick ( ) the correct statements and cross ( ) the wrong ones.


                        1.   The letters, numbers and symbols we give to the computer are
                           called instructions.

                        2.  We give instructions to the computer.


                        3.  Milk is an output in mango shake.


                  Q     Answer the following questions:
                    A

                        1.  What is the full form of IPO?





                        2.  What is the first step of an IPO cycle?







                                                                                             #Working of a Computer  25
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