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COMPUTER GENERATIONS


                  After these early calculating machines, the present computer took its shape in five
                  generations.
                  First Generation (1940s)

                  There were many computers that were a part of first generation computers.

                  MARK-I (The First Electro-Mechanical Powered Computer)

                  In 1944, Prof. Howard Aikens built the first electro-mechanical computer named
                  Mark-I. It used punched cards and a typewriter for input and output. Mark-I was
                  much more reliable than early electronic computers.























                                                                 Mark-I
                  ENIAC—The First Electronic Computer

                  Electronic Numerical Integrator And Computer, was the first electronic general
                  purpose  digital  computer  built in  1946 by  John  Mauchly  and  Presper  Eckert.

                  It contained over 18,000 vacuum tubes and was 1000 times faster than Mark-I.
                  ENIAC consumed almost 200 kw of power.

























                                                                 ENIAC

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