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Computer History
Timeline
Inventor | Invention/Date |
---|---|
Blaise Pascal | Pascaline- mechanical calculating device; 1642 |
Gottfried Wilhelm von Leibniz | Stepped Reckoner- device to add/subtract/multiply/divide but malfunctioned; 1670 |
Charles Babbage | Analytical engine- calculating machine, punched cards to store info; 1890 |
Herman Hollerith | Tabulating machine- used electricity instead of gears to calculate; 1890 |
John Atanasoff | Atanasoff-Berry Computer; binary number system used in computers; 1939 |
Clifford Berry | Atanasoff-Berry Computer; binary number system used in computers; 1939 |
Mark 1 | Devised by Howard Aiken;1st universal calculator; 1944 |
John Mauchly | Electronic Numerical Integration and Calculator- solve mathematical problems fast; 1946 |
J. Presper Eckert | Electronic Numerical Integration and Calculator- solve mathematical problems fast; 1946 |
Alan Turing | Turing Machine (The "Enigma")- developed idea of a universal machine; Late 1930s/ early 1940s |
Jon von Neumann | EDVAC- Electronic Discrete Variable Automatic Computer w/ Mauchly & Eckert; Inspired construction of EDSAC; 1947 |
Transistor | Invented by William Shockley, John Bardeen & Walter Brittain; replaced tubes to make computers more efficient and reliable |
Grace Murray Hopper | COBOL- Commom Business Oriented Language; 1950s |
Jack Kilby | Developed 1st integrated circuit; 1958; invented 1st hand held calculator; |
William Gates 3 | Founder of Microsoft Corporation; Started Microsoft company w/ Paul Allen 1975 |
Paul Allen | Co-founder of Microsoft Corporation; Owner of Portland Trail Blazers |
Thomas Knoll | Software engineer; Created Adobe Photoshop; 1988 |
Allan Knoll | Software engineer; Created Adobe Photoshop; 1988 |