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Created byEmily DeVore
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Abacus (counting frame)
Counting tool that consists of beads or disks that can be moved up/down to assist in counting or keeping track of dataBlaise Pascal born
june 19th, 1623- August 19th, 1662
Clermount- Ferrand, FrancePascaline (created by Pascal)
Calculator known as an adding machine
It adds/ subtracts 2 numbers directly, also performs multiplication/divisionGottfried Wilhelm Leibniz
July 1st 1646- November 14th, 1716
Leipzig, GermanyLeibniz Machine (created by Leibniz)
Calculating machine also known as a step reckoner
Could perform multiplication by repeated addition and shiftingBinary Code (created by Leibniz)
Represents text using only 2 symbol system
assigns a pattern of binary digits to each characterGeorge Boole
November 2nd, 1815- December 8th, 1864
Lincoln, United KingdomBoolean Algebra
type of algebra
which the values of usually denoted 1 and 0 respectivelyCharles Babbage
December 26, 1791- October 18, 1871
London, United KingdomDigital Programmable Computer
Created by Charles Babbage
"father of the computer"Herman Hollerith
February 29, 1860- November 17, 1929
Buffalo, NY
Washington DCTabulator
electromagnetic machine designed to assist in summarizing info stored on punch cards
1890- to process data for the 1890 U.S. censusVannevar Bush
March 11, 1890- June 28, 1974
Everett, MA
Belmont, MARockefeller Differential Analyzer
An all electronic analogue computer
designed to solve differential equations by integration
Used wheel-and-disc mechanisms to performClaude Shannon
April 30, 1916- February 24, 2001
"Father of the electronics communications age"Alan Turing
June 23, 1912- June 7, 1954
Wilmslow, United Kingdom
By Using mathematics, computer science, and artificial intelligence skills, Turing broke the secret german code for communicatingKonrad Zuse
June 22, 1910- December 18, 1995
Berlin, Germany
Inventor of the first working computerJohn Atanasoff (October, 4, 1903- June 15, 1995)
Clifford Berry (April 19, 1918- October 30, 1963)
Gladbrook, Iowa
Created the 1st automatic electronic digital computerHoward Aiken
March 8, 1900- March 14, 1973
Hoboken, NJHarvard MarK I
(IBM Automatic Sequence Controlled Calculator)
General purpose electromagnetic computer
used in the war effort during WWIIFrederico Faggin (1941)
Marcian Edward (1937)
Vicenza, Italy
Rochester, NY
Designed the 1st commercial microprocessorJohn Mauchly (August 30, 1907- January 8, 1980)
J. Presper Ecker (April 9, 1919- June 3, 1995)
Philadelphia
Started the First computer companyJohn Bardeen(1908-1991)
Walter Brattain(1902-1987)
William Shockley( 1910- 1989)
Wisconsin, England, Qing Dynasty
Invention of the transistor,
"the most important invention of the 20th centuryEd Roberts
September 13, 1941- April 1, 2010
Miami, Florida
"Father of the personal computer"Steve Wozniak
August 11, 1950
San Jose, California
Created the Apple IApple I
desktop computer released by the Apple Computer Company
April 11, 1976Apple II
8-bit home computer
One of the first highly successful mass- produced microcomputer products
June 1977Gary Kildall
May 19, 9142- July 11, 1994
Seattle, Washington
created the CP/ M operating systemBill Gates
October 28, 1955
seattle, Washington
Creator of MicrosoftAlan Kay
May 17, 1940
Springfield, MA
Pioneering work on object-oriented programmingSteve Jobs
February 24, 1955- October 5, 2011
San Francisco, California
Creator Of Apple
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