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Computer History

Timeline

InventorInvention
Blaise Pascal A mechanical calculating device, Pascaline.
Gottfried Wilhelm von Leibniz Supposed to add, multiply, subtract and divide, but malafunctioned. Known as Stepped Reckoner.
Charles Babbage A calculating machine that used punched cards to store information in. Known as Analytical Engine.
Herman Hollerith Invented the tabulating machine.
John Atanasoff & Clifford Berry Atanasoff-Berry Computer, used binary number system used in computers today.
Mark 1 ASCC(Automatice Sequence Controlled Calculator), the first large scale automatic digital computer. Some consider it to be the first universal calculator.
John Mauchly & J. Presper Eckert ENIAC(Electronical Numerical Integration and Calculator), solves mathematical problems faster.
Alan Turing The Turing Machine, The "Enigma"
Jon von Neumann EDVAC(Electronic Discrete Variable Automatic Computer) with Mauchly and Eckert.
William Shockley, John Bardeen, and Walter Brittain Transistor
Grace Murray Hopper COBOL(Common Business Oriented Language)
Jack Kilby Developed the first integrated circuit, and the first handheld calculator.
William Gates III Founder of Microsoft Corporation
Paul Allen Co-owner of Microsoft Corporation
Thomas Knoll & John Knoll Creators of Photoshop.
Created by: leyannacabrera