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 1623-1662 | Invented a mechanical calculating device called Pascaline 1642 Device performs only addition. Device never worked properly.
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| Gottfried Wilhelm von Leibniz 1646-1716 | Entered Vo Leipzig at the age of 14 in 1661. invented the Stepped Reckoner in 1670. Device was used to add, subtract, and divide but malfunctioned. Only his secretary attended his funeral.
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| Charles Babbage 1798-1871 | Analytical Engine-Calculating machine that used punch cards to store information was invented in 1842. Considered the father of computers.
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| Herman Hollerith 1860-1929 | Invented the tabulating machine in 1890. Died on November 17,1979 of a heart attack.
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| John Atanasoff 1903-1995 Clifford Berry 1918-1963 | Atanasoff-Berry Computer in 1939 used binary number system in computers today.Clifford helped John finish the computer.
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| Mark Aiken 1-1944 | Went to Harvard University, ASCC- Automatic Sequence Controlled Calculator. The first large scale automatic digital computer.
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| John Mauchly 1907-1980 J. Presper Eckert-1919-1995 | Worked on ENIAC (Electronic Numerical Integration and Calculator) invented in 1946.Army used this for calculations.
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| Alan Turing 1912-1954 | Died of suicide. Developed idea of a universal machine in the late 30s and 40s. Founding father of computer science, called The Enigma or the Turing Machine.
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| Jon von Neumann 1903-1957 |
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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:
TriannaDelRosario
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