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Computer history
Timeline
| Inventor | Invention-Date |
|---|---|
| Blaise Pascal | Pascaline-1642 |
| Gottfried Wilhelm Von leibniz | Stepped reckoner-1670 |
| Charles Babbage | Difference machine used to calculate-1842 |
| Herman Hollerith | Tabulating machine-1890 |
| John Atanasoff | Atanasoff-Berry computer-1939 |
| Clifford Berry | Electronic digital computer-1939 |
| Howard H. Aiken | Automatic Sequence Controlled Calculator-1944 |
| John Mauchly | Electronic Numerical Integration and Calculator-1946 |
| J. presper Eckert | Electronic Numerical Integration and Calculator-1946 |
| Alan Turing | Turing machine-late 30s |
| John Von Neuman | EDVAC automatic Computer-1947 |
| William Shockley, John Bardeen & Walter Brittain | Transistor-1947 |
| Grace Murray Hopper | COBOL, a programming Language-1959 |
| Jack Kilby | Hand held calculator-1958 |
| William Gates | Microsoft Windows, Xbox-1975 |
| Paul Allen | Microsoft Windows-1975 |
| Thomas Knoll | Adobe Photoshop-1988 |
| John Knoll | Adobe Photoshop & image Pro.-1988 |
| Adam Fischer, Peter Halacsy & Peter Arrai | Prezi-2008 |