Grace Murray Hopper
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 | Invented the Stepped Reckoner in 1670.
Device was supposed to add, multiply, subtract and divide but malfunctioned.
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| Charles Babbage 1792-1871 | Analytical Engine-calculating machine that used punched cards to store information in 1842.
Chief Collaborator was Ada Byron 1815-1852.
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| Herman Hollerith 1860-1929 | Invented the tabulating machine in 1890.
Used electricity instead of gears to perform calculations.
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| John Atanasoff 1903-1995 Clifford Berry 1918-1963 | Atanasoff-Berry Computer (ABC) (1939) used binary number system used in computers today.
Contains 100's of vacuum tubes.
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| Mark 1- 1944 | Over 51 feet long and weighed over 5 tons.
ASSC (Automatic Sequence Controlled Calculator).
Devised by Howard H. Aiken at IBM.
The first large-scale automatic digital computer. Considered by some to be the 1st universal calculator.
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| John Mauchly 1907-1980- J. Presper Eckert 1919-1995 | Worked on ENIAC (Electronic Numerical integration and Calculator) in 1946.
Solves mathematical problems faster.
Originally a military project that was "top secret".
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| Alan Turing 1912-1954 | Developed idea of a universal machine in the late 30's and 40's.
Called the Turing Machine. The "Enigma".
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| Jon Von Neumann 1903-1957 | Could divide 8 digit numbers in his mind at the age of 6.
Built the EDVAC (Electronic Discrete Variable Automatic Computer) with mauchly and Eckert in 1947.
Inspired the construction of EDSAC (Electronic Delay Storage Automatic Calculator) in 1949.
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| Transitor | Invented in 1947 by William Shockley, John Bardeen and Walter Brittain.
One transistor replaced many tubes, making computers smaller, less expensive and reliable.
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| grace Murray Hopper 1906-1992 | Received the 47 honorary awards.
Designed COBOL (Common Business Oriented Language) a programming Language.
1st programmer for Mark 1.
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| Jack Kilby 1923-2005 | Developed the 1st integrated Circuit in 1958.
Invented the 1st hand held calculator.
Studied electrical engineering.
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| William Gates October 28,1955 | Founder of Microsoft Corporation.
Started Microsoft company in 1975 with Paul Allen.
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| Paul Allen Jan. 21, 1953 | Co-founder of Microsoft Corporation.
Owner of Portland Trail Blazers.
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| Thomas Knoll John Knoll | Software engineers.
Creators of Adobe Photoshop 1988.
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| Peter Arvai Peter Halacsy Adam Somlai Fischer | Prezi Established in 2009.
Used by professors, students and business men/women.
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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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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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