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 Willhelm von Leibniz | Stepped Reckoner 1670
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Charles Babbage | Analytical Engine-calculating machine 1842
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Herman Hollerith | Punch Card Tabulating Machine 1890
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John Atanasoff,Clifford Berry | Atanasoff-Berry Computer(ABC) 1939
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Howard H. Aiken | Mark 1
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John Mauchly,J. Presper Eckert | Electronic Numerical Integration and Calculator(ENIAC) 1946
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Alan Turing | The Enigma late 30's-40's
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Jon von Nuemann | Electronic Discrete Variable Automatic Computer(EDVAC) 1947
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William Shockley,John Bardeen,Walter Brittain | Transistor 1947
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Grace Murray Hopper | Common Buisness Oriented Language(COBOL)
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Jack Kilby | 1st integrated Circuit 1958, 1st hand held calculator
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William Gates 3 | Founder Microsoft 1975
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Paul Allen | Co-founder Microsoft 1975
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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:
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