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Computer History

Time-Line

Inventor Invention
Blaise Pascal Mechanical Calculating device called Pascaline - 1642
Gottfried Wilhelm von Leibniz The Stepped Reckoner - 1670
Charles Babbage Analytical Engine-calculating machine- 1842
Herman Hollerith Tabulating Machine - 1890
John Atanasoff & Clifford Berry ABC computer - 1939
Howard H. Aiken Mark 1 - 1944
John Mauchly & J. Presper Eckert Electronic Numerical Integration and Calculator - 1946
Alan Turing The Enigma - late 1930 - 1940
Jon von Neumann Electronic Discrete Variable Automatic Computer - 1947
William Shockley, John Bardeen, and Walter Brittain Transistor - 1947
Grace Murray Hopper Common Business Oriented Language, first program for Mark 1
Jack Kilby 1st Integrated Circuit and 1st Calculator - 1958
William Gates III Microsoft - 1975
Paul Allen Jan Co-Founder of Microsoft - 1975
Thomas Knoll & John Knoll Adobe Photoshop - 1988
Created by: JoePan_
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