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                     Guess my name:
                     1.  You can keep me on your lap                                   …................…………………….
                     2.  I am an ancient tool for calculation                          …................…………………….

                     3.  You can keep me on a desk                                     …................…………………….
                     4.  I am the first desktop computer                               …................…………………….







                          At a Glance

                    ●   Early people tied knots in a rope and carved marks on clay to keep the records.

                    ●   ABACUS was the first calculating device invented 3000 years ago in China.
                    ●  Charles Babbage is known as the father of computer.

                    ●   Lady Ada Lovelace was the first computer programmer.
                    ●   Desktop can be seen at various places such as homes, schools and shops.

                    ●   A laptop is smaller than a desktop computer.
                    ●   A tablet is a notebook-shaped mobile computer.

                    ●   A smartphone is a mobile phone that can be used as a computer also.








                 Tick ( ) the correct option.

                    1.  Which of these was not used by the early men for counting?







                        a.                                               b.











                        c.                                               d.







                                                                                Evolution of Computers      15
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