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Computer History
Timeline
| inventor | invention/date |
|---|---|
| Blaise Pascal | Pascaline/ Jun. 19, 1662 |
| Gottfried Wilhelm von Leibniz | Steepped Reckoner/ 1692 |
| Charles Babbage | Analytical Engine-calculating machine/ 1842 |
| Herman Hollerith | tabulating machine/ 1890 |
| John Atanasoff & Clifford Berry | ABC/ 1939 |
| Mark 1 | ASCC/ 1944 |
| Jerrold Calvo | The Internet/ Since Ever Since |
| John Mauchly & J. Presper Eckert | ENIAC/ 1946 |
| Allan Turing | The Turing Machine (Enigma) |
| John Bardeen, William Shockley, & Walter Brittain | Transistor/ 1947 |
| Grace Murray Hopper | COBOL |
| Jack Kilby | 1st Intergrated Circuit/ 1958 |
| William Gates III | Microsoft Corporation/ 1975 |
| Paul Allen | Co-founder of Microsoft/ 1975 |
| Thomas & John Knoll | Adobe Photoshop/ 1988 |