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Computer History

Timeline

InventorInvention/Date
Blaise Pascal Pascaline- mechanical calculating device; 1642
Gottfried Wilhelm von Leibniz Stepped Reckoner- device to add/subtract/multiply/divide but malfunctioned; 1670
Charles Babbage Analytical engine- calculating machine, punched cards to store info; 1890
Herman Hollerith Tabulating machine- used electricity instead of gears to calculate; 1890
John Atanasoff Atanasoff-Berry Computer; binary number system used in computers; 1939
Clifford Berry Atanasoff-Berry Computer; binary number system used in computers; 1939
Mark 1 Devised by Howard Aiken;1st universal calculator; 1944
John Mauchly Electronic Numerical Integration and Calculator- solve mathematical problems fast; 1946
J. Presper Eckert Electronic Numerical Integration and Calculator- solve mathematical problems fast; 1946
Alan Turing Turing Machine (The "Enigma")- developed idea of a universal machine; Late 1930s/ early 1940s
Jon von Neumann EDVAC- Electronic Discrete Variable Automatic Computer w/ Mauchly & Eckert; Inspired construction of EDSAC; 1947
Transistor Invented by William Shockley, John Bardeen & Walter Brittain; replaced tubes to make computers more efficient and reliable
Grace Murray Hopper COBOL- Commom Business Oriented Language; 1950s
Jack Kilby Developed 1st integrated circuit; 1958; invented 1st hand held calculator;
William Gates 3 Founder of Microsoft Corporation; Started Microsoft company w/ Paul Allen 1975
Paul Allen Co-founder of Microsoft Corporation; Owner of Portland Trail Blazers
Thomas Knoll Software engineer; Created Adobe Photoshop; 1988
Allan Knoll Software engineer; Created Adobe Photoshop; 1988
Created by: dmafnas
Popular Computers sets

 

 



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