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Blaise Pascal Mechanical device called Pascaline in 1642.
Gottfried Wilhelm von Leibniz Invented the stepped Reckoner in 1670.
Charles Babbage Analytical Engine-Calculating machine that used punched cards to store information in 1842.
Herman Hollerith Invented the tabulating machine in 1890.
John Atanasoff/Clifford Berry Atanasoff & Berry computer (ABC) in 1939 used binary number system used in computers today.
Mark 1 Automatic Sequence Controlled Calculator. (ASCC)
John Mauchly/J.Presper Eckert Worked on Electronic Numercial Integration and Calculator in 1946.
Alan Turing Developed idea of a universal machine in the late 30's and 40's
Jon von Neumann built the electronic discrete variable automatic computer with Mauchly and Eckert in 1947
Transistor invented in 1947 by William Shockely , John Bardeen, and Walter Brittain.
Grace Murray Hopper Recieved 47 Honorary awards , Born 1906
Jack Kilby Developed the 1st integrated circuit in 1958. She invented the 1st hand held calculator.
William Gates III Born October 28, 1951. Founder of the Microsoft Corporation.
Paul Allen Co-founder of Microsoft Corporation.
Thomas Knoll/John Knoll He is a Software engineer, Creator of Adobe Photoshop in 1988
Created by: k_diaz33