Timeline
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Blaise Pascal | Pascaline 1642
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| Gottfried Wilhelm von Leibniz | Stepped Reckoner 1670
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| Charles Babbage | Analytical Engine-calculating machine that use punched cards to store information in 1842
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| Herman Hollerith | Invented the tabulating machine in 1890
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| John Atanasoff Clifford Berry | Atanasoff-Berry computer 1939
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| Mark 1 | Automatic Sequence Controlled calculator 1944
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| John Mauchly J. Presper Eckert | Worked on Electronic Numerical Integration and Calculator in 1946
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| Alan Turing | Enigma, idea of universal machine
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| Jon von Neumann | Build the Electronic Discrete Variable Automatic Computer with Mauchly and Eckert in1947
Inspired the construction of Electronic Delay Storage Automatic Calculator in 1949
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| Transistor | Invented in 1947 by William Shockley, john Bardeen and Walter Brittain. replaced many tube, make computer smaller
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| Grace Murray Hopper | Common Business Oriented Language
1st programmer of the mark 1
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| Jack Kilby 1923-2005 | Developed the first integrated Circuit in 1958
Invented the first hand hold calculator
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| William Gates III | Founder of the Microsoft Corporation
Start Microsoft company in 1975 with Paul Allen
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| Paul Allen | Co-founder of the Microsoft corporation
owner of the Portland Trail Blazers
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| Thomas Knoll John Knoll | Adobe Photoshop 1988
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
lxcstevenliang
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