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How did we get here?. What is a Computer?. A calculating device that can follow detailed instruction To create a computer one needs to: Represent data Instructions Data manipulation Control instruction. Early computers. Pascaline , Blaise Pascal 1642.
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What is a Computer? • A calculating device that can follow detailed instruction • To create a computer one needs to: • Represent data • Instructions • Data manipulation • Control instruction
Early computers Pascaline , Blaise Pascal 1642 Abacus, Chinese, Sumerians, 5000 BCE Stepped Reckoner, Leibnitz 1694
The Analytical Engine Charles Babagge (Inventor), Ada Lovelace (Programmer), 1833-1843
The First Computer Programmer The Engine 'might act upon other things besides number... the Engine might compose elaborate and scientific pieces of music of any degree of complexity or extent'. Ada Lovelace (1815-1852)