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    How many keys are there on a keyboard?

                                                                                         21 st
                                                                                       Century   #Initiative
                                                                                         Skills
                          “Working on the computer for long hours is not good for your health.
                          Always take breaks at regular intervals while working on the computer.”

                     CPU

                     The CPU is the most important part of a computer.
                     It is also known as the brain of a computer. The CPU
                     box/cabinet contains the Central Processing Unit

                     or, CPU.

                                  MOUSE                                                       CPU      CPU box/cabinet

                                  A computer mouse is called so because it is shaped like a mouse.

                                  The cable attached to it looks like its tail. It has two buttons and a
                                  scroll wheel between these buttons.

                                                  Name any two parts of a computer.

                                                  1. __________________   2. __________________

                                                                                                         PURE
                             In 1833, Charles Babbage laid the foundation of all the parts that
                             are now used in modern computers.                                           FACT

                               ADDITIONAL PARTS OF A COMPUTER

                     Let us learn about some additional parts of a computer.

                     SPEAKERS

                     Speakers  are attached  to  a computer.  You  can listen  to
                     sounds and music on it.

                                                                                                  Parts of a Computer  23

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