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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| Invented Pascaline, a mechanical calculating device in 1642 | Blaise Pascal 1623-1662
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| Invented Stepped Reckoner in 1670 | Gottfried Wilhelm von Leibniz 1646-1716
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| Invented Analytical Engine- calculating machine in 1842 | Charles Babbage 1792-1871
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| Invented tabulating machine in 1890 | Herman Hollerith1860-1929
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| Invented Atanasoff-Berry Computer in 1939 | John Atanasoff 1903-1995
Clifford Berry 1918-1963
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| Invented the first large-scale automatic digital computer, considered to be the 1st universal calculator | Mark 1-1944
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| Invented ENIAC(Electronic Numerical Intergation and Calculator) in 1946 | John Mauchly 1907-1980
J. Presper Eckert 1919-1995
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| Invented the Turing Machine in the late 30's and 40's | Alan Turing 1912-1954
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| Invented EDVAC( Electronic Discrete Variable Automatic Computer) with Mauchly and Eckert in 1947 | Jon von Neumann 1903-1957
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| Invented Transistor in 1947 | William Shockley,John Bardeen, and Walter Brittain
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| Invented COBOL( Common Business Oriented Language) | Grace Murray Hopper 1906-1992
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| Invented 1st hand held calculator and integrated Circuit in 1958 | Jack Kilby 1923-2005
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| Founder of Microsoft and startes Microsoft company in 1975 with Paul Allen | William Gates III October 28, 1951
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| Co-founder of Microsoft Corporation | Paul Allen Jan. 21, 1953
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| Invented Adobe Photoshop in 1988 | Thomas Knoll
John Knoll
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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.
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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:
dorcyann
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