Page 8 - Computer - 3
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Let us look at another example of making a pizza.

          Step 1: We take the pizza base and add our toppings (input).
          Step 2: We bake it in the oven (process).
          Step 3: After a few minutes, we have a hot delicious pizza ready to eat (output).













                         INPUT                            PROCESS                            OUTPUT

                pizza base with toppings             bake pizza in oven                  hot yummy pizza
          Similarly, a computer follows the three steps as described:

          Input      – It accepts data and instructions from the user.
          Process – It carries out calculations on the data according to the given instructions.

          Output  – It returns the result of the process to the user.

          The above three steps together form the IPO cycle.


                                Input                      Process                      Output




          THE IPO CYCLE
                                                                                                Input
          The computer takes input, processes it, and provides
          output.  The  output  of  one  operation  can  be  the

          input for the next operation. Thus, a series of input,

          process,  and  output  operations  is  called  the  IPO                   Output                 Process
          cycle.


                  Try This                                                                             Logical Thinking


            Given below are certain steps for doing different tasks. Identify the steps as Input, Process
            or Output.
            1. Inserting a pencil in a sharpener to sharpen it.

            2. Ice cubes taken out from the ice tray.
            3. Boiling the mixture of tea leaves, milk, sugar and water on a gas stove.
            4. Putting dirty clothes in a washing machine.





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