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GENERATIONS OF COMPUTERS PowerPoint Presentation
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GENERATIONS OF COMPUTERS

GENERATIONS OF COMPUTERS

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GENERATIONS OF COMPUTERS

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  1. GENERATIONS OF COMPUTERS

  2. FIRST GENERATION 1951 - 1959 • Use of vacuum tubes as a means of storing • data in the memory. • Made the use of punched cards obsolete • Computer boards were replaced by computer • program • Storage capacity of 100 bytes to 2 kilobytes • (2,000 bytes) • Can perform 2,000 to 16,000 addition • per second

  3. SECOND GENERATION 1959 - 1964 • Use transistors and diodes • Computers are smaller in size, faster, more reliable • and much greater in processing capacity • Has built-in error detecting device • Printers were developed • Storage capacity of 6 KB to 1.3 MB • Can process up to 6,000 to 3M operations per • second TRANSISTORS • made of silicon • forty times faster than vacuum tubes

  4. THIRD GENERATION COMPUTERS 1965 - 1970 • Integrated solid circuitry was developed • Improved secondary storage devices • New input and output devices was developed • Increased speed of about 10,000 by means of IC’s • Multitasking • Can perform 100,000 to 400M operations per second INTEGRATED CIRCUITS • Has many transistors in one silicon • Developed by Jack St. Claire Kilby in 1958 • First IC was invented in 1961 • Also known as the “silicon ship”

  5. FOURTH GENERATION COMPUTERS 1970 - present • Development of microelectronics • Multiprocessing, multiprogramming, time sharing, • Multitasking miniaturization, operating speed, • and virtual storage • Can do more than one function • Its size was of the television or smaller • It can do 500, 000 to 1B operations per second MICROPOCESSOR • Less than 1 inch square and can contain millions of • electronic circuits • A complete computer on a chip • Can input, process and output

  6. FIFTH GENERATION COMPUTERS Present and beyond Artificial Intelligence • Devices are based on artificial • intelligence and are still in development • Includes voice recognition • Goal is to develop devices that respond • to natural language input and are capable • of learning and self - organization