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In 1833, he invented a machine called the Analytical

                                                      Engine, the  first  ever  working  model  of  a
                                                      mechanical computer, a fully program controlled
                                                      machine. This is why Charles Babbage is known as
                                                      the ‘father of computers’.



                         Analytical Engine

                     LADY ADA LOVELACE’S PROGRAMS

                 The  instructions  given  to  Babbage’s  Analytical  Engine

                 were in the form of 0’s and 1’s and the first person to
                 introduce this concept was Lady Ada Lovelace. Since she
                 was the first to introduce the concept of programming,
                 she is known as the first computer programmer.

                                                                                                 Lady Ada Lovelace

                     HERMAN HOLLERITH’S TABULATING MACHINE

                 Herman  Hollerith,  an  army  engineer,  built a  machine

                 called the  Tabulating  Machine in 1890. The machine
                 read and stored data from punched cards.
                 After the success of this machine, Hollerith formed a
                 Computing Tabulating Recording Company to sell his

                 machine. Later in 1924, his company became a part of
                 International Business Machines Corporation, today
                 popularly known as IBM.                                                          Herman Hollerith

























                                                   Hollerith’s Tabulating Machine





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