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History of the Computer

History of the Computer. How the Computer Evolved. 1642 Blaise Pascal – mechanical adding machine Early 1800’s Jacquard – uses punch cards to control the pattern of the weaving loom 1832 Charles Babbage - invents the Difference Engine

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History of the Computer

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  1. History of the Computer

  2. How the Computer Evolved • 1642 Blaise Pascal – mechanical adding machine • Early 1800’s Jacquard – uses punch cards to control the pattern of the weaving loom • 1832 Charles Babbage - invents the Difference Engine • 1890 Herman Hollerith – invents a machine using punch card to tabulate info for the Census Hollerith’s Tabulating Machine

  3. Evolution (continued) • 1910 Charles Watson Sr. – International Business Machines • 1946 – Mauchly and Eckert created the ENIAC computer, first electronic computer is unveiled at U. of Pennsylvania • 1970’s – Integrated circuits and silicon chips lead to smaller microprocessors

  4. ENIAC Computer • Miles of wiring • 18,000 vacuum tubes • Thousands of resistors and switches • No monitor • 3,000 blinking lights • Cost $486,000 • 100,000 additions per second • Weighed 30 tons • Filled a 30x50 foot room • Could be replaced today by one fingernail-size silicon chip

  5. Computer History of HLHS

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