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Computer History

Timeline

InventorInvention
Blaise Pascal Mechanical calculating device Pascaline 1642
Gottfried Wilhelm von Leibniz Stepped Reckoner 1670
Charles Babbage Analytical Engine-calculating machine 1842
Herman Hollerith Tabulating machine 1890
John Atanasoff Clifford Berry Atanasoff-Berry Computer (ABC) (1939)
John Mauchly J. Presper Eckert ENIAC ( Electrical Numerical Integration and Calculator) 1946
Alan Turing The Enigma late 30's and 40's
Jon von Neumann EDVAC (Electronic Discrete Variable Automatic Computer) 1947
William Shockley, John Bardeen and Walter Brittain. Transistor 1947
Grace Murray Hopper Designed COBOL ( Common Business Oriented Language)
Jack Kilby Developed the 1st integrated Circuit in 1958. Invented the 1st hand held calculator.
William Gates III Founder of Microsoft Corporation Started Microsoft company in 1975 with Paul Allen
Paul Allen Co-founder of Microsoft Corporation Owner of Portland Trail Blazers
Thomas Knoll John Knoll Adobe Photoshop 1988
Created by: JustinPalabay
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