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    How many keys are there on a keyboard?

                     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.

                                               PRINTER

                                               A printer is used  to  take  a printout  of the work done.
                                               It can print both black and white and coloured pictures
                                               and documents.

                                                                                                  Parts of a Computer  21

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