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UNIVAC

                 UNIVAC or Universal Automatic Computer, was another successful invention of
                 John Mauchly and Presper Eckert in 1951, which could handle both numeric and
                 textual information. The UNIVAC had 5200 vacuum tubes.























                                                               UNIVAC



                    Features of First Generation Computer

                        Huge in size.

                        Very expensive.
                        Made up of vacuum tubes.

                                                                                                 Vacuum tube
                 Second Generation (1950s)


                 After  1955, the use of  transistors and  magnetic
                 tapes changed the image of the electronic computer.
                 During this period, the major computer manufacturers
                 began to offer a range of accessories such as: Page
                 Printers, Cathode Ray-Tube display, Card Feeders,
                                                                                            Magnetic tape
                 etc. They were smaller, faster, more reliable, and more
                 energy-efficient.


                                      Features of Second Generation Computer

                                        Made up of transistors.

                                        Magnetic tapes were used to store data.
                                         Small  in  size  and  less  expensive  than  the  first  generation
                                        computer.
                                         Faster and reliable.
                   Transistor




                                                                                        Evolution of Computers   11
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