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Computer History

Timeline Notes

InventorInventions
Blaise Pascal 1623-1662 *Invented a mechanical calculating device called Pascaline. 1642 *Device performs only addition and never worked properly.
Gottfried Wilhelm von Leibniz 1646-1716 Invented the Stepped Reckoner in 1670, which was supposed to add, subtract, multiply, and divide but it didn't work.
Charles Babbage 1792-1871 *Analytical Engine-calculating machine that used to punch cards to store information. *Ada Byron was the chief collaborator.
Herman Hollerith 1860-1929 *Invented the tabulating machine in 1890. *It used electricity to perform calculations.
John Attanasoff 1903-1995 and Clifford Berry 1918-1963 *Attanasoff-Berry computer (ABC) 1939 used binary number system used in computers today. *Contains 100's of vacuum tubes.
Mark 1 1944 *Over 51 ft long and weighed over 5 tons. *Automatic Sequence Controlled Calculator (ASCC) *Devised by Howard H. Aiken at IBM. *This was the first large-scale automatic digital computer. Some considered it to be the first universal calculator.
John Mauchly 1907-1980 and J. Presper Eckert 1919-1995 *Worked on Electronic Numerical Integration and Calculator (ENIAC) in 1946. *It solves mathematical problems faster. *Was also the military project that was top secret.
Alan Turing 1912-1954 * He developed the idea of a universal machine in the late 30's and 40's. *It was called the Turing Machine. The "enigma"
Jon von Neumann 1903-1957 *He could divide 8 digit numbers at the age of 6. *Built the Electronic Discrete variable Automatic Computer (EDVAC) with Mauchly and Eckert in 1947.
William Shockley, John Bardeen, and Walter Brittain. *Transistor was invented in 1947. *It replaced many tubes, making computers small, and it was less expensive and was reliable.
Grace Murray Hopper 1906-1992 *She received the 47 honorary awards. *Designed Common Business Oriented Language (COBOL) a programming language. *1st programmer for Mark 1.
Jack Kilby 1923-2005 *Developed the first integrated Circuit in 1958. *Studied electrical engineering. *Invented the first hand held calculator.
William Gates III (Bill Gates) 10-28-1951 *He was the founder of Microsoft Corporation. *He also started the company in 1975 with Paul Allen.
Paul Allen 01-21-1953 *He was the co-founder of Microsoft Corporation. *He is also a owner of the NBA team Portland Trail Blazers.
Thomas Knoll and John Knoll *They were Software Engineers. *Creators of Adobe Photoshop. *First invention was called the Image Pro.
Peter Avai, Peter Halacky, and Adam Icher. *Inventor of the Prezi.com. 2008
Alan Shogart *Invented the floppy disk in 1967
Steve Russel *Invented the first game "Space War" in 1962.
Created by: jchav02
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