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Computer History

Timeline

InventorInvention/Date
Blaise Pascal 1623-1662 Invented a mechanical calculating device called the Pascaline. 1642
Gottfried Wilhelm von Leibniz 1646-1716 Invented the Stepped Reckoner in 1670.
Charles Babbage 1792-1871 Analytical Engine-calculating machine that used punced cards to store information in 1842.
Herman Hollerith 1860-1929 Invented the tabulating machine in 1890.
John Atanasoff 1903-1995 Clifford Berry 1918-1963 Atanasoff-Berry Computer (ABC) (1939) used binary system used in computers today.
Howard H. Aiken Mark 1- 1944, The first large-scale automatic digital computer. Considered by some to be the 1st universal calculator.
John Mauchly 1907-1980 J. Presper Eckert 1919-1995 Worked on ENIAC (Electronic Numerical Integration and Calculator) in 1946.
Alan Turing 1912-1954 The Turing Machine a.k.a The "Enigma". 1936
John von Neumann 1903-1957 Built the EDVAC (Electronic Discrete Variable Automatic Computer) with Mauchly and Eckert in 1947.
William Shockley John Bardeen Walter Brittain The Transistor in 1947
Grace Murray Hopper 1906-1992 Designed COBOL (Common Business Oriented Language) a programming language. 1959
Jack Kilby 1923-2005 Developed the 1st integrated Circuit in 1958. Invented the 1st hand held calculator. 1967
William Henry "Bill" Gates III - October 28, 1951 Founder of Microsoft Corporation. 1975
Paul Allen - January 21, 1953 Co-founder of Microsoft Corporation. 1975
Thomas Knoll John Knoll Creators of Adobe Photoshop in 1988.
Created by: jpferrer670