Page 10 - KEC Khaitan C3 Flipbook
P. 10

Accuracy: It  performs  calculations  without  making

                                                     any mistake. However, we can get incorrect output if

                                                     inaccurate data is fed into the computer.








                  Versatility:  It  performs  various  types  of  tasks  at  the
                  same time.






                                                        Memory: It stores  huge  amounts  of data  and

                                                        information that can be retrieved quickly and easily
                                                        when needed.








                            WORKING OF A COMPUTER

                  As we have discussed earlier, a computer can do a lot of things. Let us understand

                  how a computer works.

                  A computer works in three steps: Input                Process       Output (IPO). This is also
                  called the IPO cycle.

                                    Input                     Process                      Output



                  INPUT

                  We enter data and instructions into the computer which is called input. The devices
                  which are used to send input to a computer are called input devices.


                  PROCESS

                  A computer works on data (input) to produce meaningful information with the help of
                  processing device known as the CPU (Central Processing Unit). This conversion of
                  data into information is called processing. CPU is also called the brain of a computer.






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