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UNIVAC

                 UNIVAC, or  Universal Automatic Computer, was another  successful  invention of
                 John Mauchly and Presper Eckert in 1951 that could handle both numeric and textual
                 information.
























                                                                UNIVAC
                 The UNIVAC had 5,200 vacuum tubes.


                    Features of First Generation Computers


                    •  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 displays, 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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