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Computer History


Blaise Pascal Pascaline 1642- Device that performs only addition but never worked properly.
Gottfried Wilhelm von Leibniz Step Reckoner 1670 -was supposed to add, multiply, subtract and divide but malfunction
Charles Babbage Analytical Engine-calculating machine 1842 -punched cards to store information
Herman Hollerith tabulating machine 1890 -used electricity instead of gears to perform calculations
John Atanasoff-1903 to 1995 Clifford Berry- 1918 to 1963 Atanasoff-Berry Computer (ABC) -used binary # system used in computers today *contains 100 vacuum tubes.
Mark 1- 1944 Devised by Howard H. Aiken at IBM. ASCC (Automatic Sequence Controlled Calculator) Over 51 ft long and weighed over 5 tons. First large scale automatic digital computer, considered the 1st universal calculator.
John Mauchly- 1907 to 1980 J. Presper Eckert- 1919 to 1995 ENIAC 1946- (Electronic Numerical Integration and Calculator) solves mathematical problems faster & was originally "top secret" military project.
Alan Turing- 1912 to 1954 Turing Machine or The "Enigma"- an idea of a universal machine
Jon Von Neumann- 1903 to 1957 *could divide 8 digit #s at the age of 6. EDVAC 1947 - (Electronic Discrete Variable Automatic Computer) with Mauchly & Eckert. **Inspired the construction of EDSAC (Electronic Delay Storage Automatic Calculator) in 1949
Transistor Invented by William Shockley, John Bardeen and Walter Brittain in 1947. *one transmitter replaced many tubes, making computers smaller, cheaper, and more reliable.
Grace Murray Hooper- 1906 to 1992 *received 47 honorary awards. COBOL- (Common Business Oriented Language) a programming language. *1st programmer for Mark 1.
Jack Kilby- 1923 to 2005 *studied electrical engineering. 1st hand-held calculator. 1st integrated Circuit in 1958
William Gates III- October 28th, 1951 Founder of Microsoft Corporation. Started Microsoft in 1975 with Paul Allen.
Paul Allen- January 21st, 1953 Co-Founder of Microsoft Corporation Owner of Portland Trail Blazers
Thomas Knoll John Knoll Software Engineers. Creators of Adobe Photoshop 1988
Created by: ambsscamillex