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 1623 - 1692 | Invented a Mechanica device called pascaline. 1642
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| Gottfriead Wilhelm von leibniz 1646 - 1716 | invented the stepped reckoner in 1670.
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| Charles Babbage 1792 - 1871 | Analytical Engine-calculating machine that used punched cards to store information in 1842.
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| Herman Holloerith 1860 - 1920 | Invented the tabulating machine in 1890.
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| John Atansoff 1903 - 1995 Clifford Berry 1918 - 1963 | Atansoff-berry computer (ABC) (1939) used bunary number system used in computers today.
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| Howard H. Aiken Mark 1 - 1944 | Over 51 feet long and weighed over 5 tons
ASCC (Automatic Sequence Controlled Calculator)
First large scale automatic digital computer
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| John Mauchly 1907 - 1995 J. presper Eckert 1919 - 1995 | Worked on ENIAC (elctronic Numerical Intregration and calculator in 1946
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| Alan Turing 1912 - 1954 | Developed idea of a universal machine in the late 30's and 40's
the device called "Enigma"
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| Jon von Neumann 1903 - 1957 | built the EDVAC (Electronical Discrete Automatic Computer) with Mauchly and Eckert in 1947
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| William Shockley John Bardeen and walter Brittain | Transistor 1947
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| Grace Murray Hopper 1906 - 1992 | Designed COBOL (Common Business Oriented Language)
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| Jack Kilby 1923 - 2005 | invented the 1st intregated circuit in 1958
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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:
Jabelinde
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