Basic HTML Version

|  | Table of Contents |  | View Full Version

Page 25 - 2612_Digimind
P. 25

    21 st
                                                                  Century   #Initiative
                                                                    Skills
                                              “We should not switch off the main
                                              power supply button without safely
                                              shutting down the computer. It may
                                              cause harm to the computer.”

                               HOW A COMPUTER WORKS?

                     You know that a computer cannot function on its own. It needs instructions to

                     work. Let us observe how the IPO cycle works in daily life.

                     WASHING CLOTHES IN A WASHING MACHINE

                     In  this example, dirty clothes and washing powder are the inputs. We are

                     washing the clothes as a set of processes. So, washing clothes is the process.
                     We get clean clothes as the output.

                                                                     Process
                        dirty clothes and washing powder            washing the clothes              clean clothes
                                     (Input)                             (Process)                      (Output)

                     CALCULATING NUMBERS

                     If we are asked to add the numbers 10 and 5.

                                                     10           5          +      =    ?

                     To add these numbers, we will use our brain to think and calculate.

                                    10,5,+                          10 + 5                             15
                                     Input                         Process                          Output

                                                                                                 Operating a Computer  23

| 20 21 22 23 24 25 26 27 28 29 30 |