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be programmed to perform a specific calculation. But even after working on this

                 project for 10 years, this machine never became a reality.
                 In 1833, he invented a machine called the Analytical Engine, the first-ever working
                 model of a mechanical computer,  a fully program-controlled  machine. It also
                 included integrated memory and programs flow control and also ALU into it. This
                 is why Charles Babbage is known as the ‘Father of computers’.
















                                      Difference Engine                  Analytical Engine
                 Lady Ada Lovelace’s Programs


                 The instructions given to Babbage’s Analytical Engine were
                 in the form of Binary Numbers 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.

                   Herman Hollerith’s Tabulating Machine                                        Lady Ada Lovelace

                 Herman        Hollerith,      an    army      engineer,      built    an
                 electromechanical  device 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
                                                                                                 Herman Hollerith
                 popularly known as IBM.















                                                   Hollerith’s Tabulating Machine


                                                                                        Evolution of Computers      9
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