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    The IPO cycle  describes  how a  computer  performs  tasks.  In this  cycle,  a
                     computer takes input, processes it and gives an output. IPO stands for Input,

                     Process and Output.

                          Input: The set of instructions or data provided                               QR QUEST
                         to a computer to perform a task is called input.                           Visit the given link
                         For example, typing your  name  using the                        to learn about the working

                         keyboard.                                                               of a computer:

                         Process: The operations  performed by  the                         https://www.youtube.com/
                                                                                               watch?v=CBf-jIn44X0
                         computer  on the given input  are called                        Answer the given question:

                         processes. The computer uses its brain (called                  When you click on a picture
                         the CPU) to understand and process the input.                   to open it, what happens in
                         For  example, the computer  understands  the                    the computer?

                         letters you typed.

     When you use a computer, it helps you do different things. You can play games,     Output: The result given by the computer  after processing  the input  is
     draw pictures and learn new things. But how does the computer know what to   called output. For example, the computer shows your name on the screen.

     do? The IPO cycle helps the computer. The IPO cycle makes sure the computer   Let us look at some real-life examples of the IPO cycle.
     works properly.

     IPO CYCLE

     When you are hungry and want to make a sandwich, you follow these steps:

                             5, 10, add                            5 + 10                                15

                                Input                             Process                             Output
                     A computer uses input devices like the keyboard and mouse to take input, the
     INPUT  PROCESS  OUTPUT
                     CPU to process it and output devices like the monitor and printer to show the
     The ingredients to make a   The cooking is the PROCESS.  A ready-to-eat sandwich is
     sandwich are the INPUT.  the OUTPUT.  result. This is called the IPO cycle.
                         PRIVACY PRACTICES
     The whole task follows the IPO cycle.
                         When you use the mouse, you can click on pictures or programs. Be careful! Only
     The same concept applies to a computer system as well.  click on things that are safe and that you know.

                                                                                        The Computer Story: In and Out  21

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