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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 Computers


                    •  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, Card Feeders, etc.                       Magnetic tape



                                                 Features of Second Generation Computers

                                   •  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



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                                                                                         Evolution of Computers
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