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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.
























                                                               UNIVAC
                 The UNIVAC had 5200 vacuum tubes.


                    Features of First Generation Computer


                        Huge in size
                        Very expensive
                        Made up of vacuum tubes
                                                                                                 Vacuum tube


                 Second Generation (1950s)

                 After 1955, 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,
                                                                                            Magnetic tape
                 Card Feeders, etc.


                                      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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