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Computer History

Timeline Notes

InventorInvention/Date
Blaise Pascal Pascaline-1642
Gottfried Wilhelm von Leibniz Stepped Reckoner-1670
Charles Babbage Analytical Engine-1842
Herman Hollerith Tabulating Machine-1890
John Atanasoff & Clifford Berry Atanasoff-Berry Computer (ABC)-1939
Howard H. Aiken Mark I-1944
John Mauchly & J. Presper Eckert Electronic Numerical Integration and Calculator (ENIAC)-1946
Alan Turing The Turing Machine (The Enigma)-1936
Jon von Neumann Electronic Discrete Variable Automatic Computer (EDVAC)-1947 & (Inspired) Electronic Delay Storage Automatic Calculator (EDSAC)-1949
William Shockley, John Bardeen, & Walter Brittain Transistor-1947
Grace Murray Hopper Common Business Oriented Language (COBOL)-1959 to 1961 1st programmer for Mark I
Jack Kilby 1st Integrated Circuit-1958 1st Handheld Calculator
William Gates III Founded Microsoft-1975
Paul Allen Co-founder Microsoft-1975
Thomas Knoll & John Knoll Adobe Photoshop-1988
Created by: cristinamaeruiz