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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 0s and 1s 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
                 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

                    Info Byte

                     Tabulating  Machine  was  used to gather  information  for  the  1890 census more
                     efficiently.





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                                                                                         Evolution of Computers
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