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Reb             t


                       Early people tied knots in ropes and carved marks on clay to keep the records.

                        ABACUS was the first calculating aid invented 3000 years ago in China.
                        Charles Babbage developed the Difference Engine in 1822 and Analytical
                      engine in 1833.

                        Lady Ada Lovelace is considered as the first programmer.

                        Herman Hollerith developed the Tabulating Machine in 1890.
                       The use of the ICs reduced the size and increased the speed of the computers.

                       The data stored in the computer can be recalled at any time.

                       A computer can process millions of instructions in seconds.




                  One       Touch      Learn                                              Section A (Objective)
                  One


                 A.  Tick (3) the correct option.

                     1.  Early men carved marks on ................................ in order to keep the records.


                         a. clay                     b. computer                   c. calculator

                     2.  The ................................ generation used magnetic tapes.

                         a. first                    b. third                      c. second


                     3.  Herman Hollerith invented ................................ .

                         a. UNIVAC                   b. Mark-I                     c. Tabulating Machine

                     4.  The first electro-mechanical computer was ................................ .


                         a. Mark-I                   b. ENIAC                      c. Difference Engine

                     5.  ................................ can process millions of instructions in seconds.

                         a. Pebbles                  b. Computer                   c. Tabulating machine


                 B.  Write ‘T’ for true and ‘F’ for false.

                     1.  Early man used to count with a calculator.                                   ..........................

                     2.  Abacus is used to calculate numbers at low speed.                            ..........................

                     3.  VLSI stands for very low scale integration.                                  ..........................




                                                                                        Evolution of Computers     15
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