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 | A mechanical calculating device, Pascaline.
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| Gottfried Wilhelm von Leibniz | Supposed to add, multiply, subtract and divide, but malafunctioned. Known as Stepped Reckoner.
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| Charles Babbage | A calculating machine that used punched cards to store information in. Known as Analytical Engine.
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| Herman Hollerith | Invented the tabulating machine.
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| John Atanasoff & Clifford Berry | Atanasoff-Berry Computer, used binary number system used in computers today.
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| Mark 1 | ASCC(Automatice Sequence Controlled Calculator), the first large scale automatic digital computer. Some consider it to be the first universal calculator.
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| John Mauchly & J. Presper Eckert | ENIAC(Electronical Numerical Integration and Calculator), solves mathematical problems faster.
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| Alan Turing | The Turing Machine, The "Enigma"
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| Jon von Neumann | EDVAC(Electronic Discrete Variable Automatic Computer) with Mauchly and Eckert.
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| William Shockley, John Bardeen, and Walter Brittain | Transistor
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| Grace Murray Hopper | COBOL(Common Business Oriented Language)
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| Jack Kilby | Developed the first integrated circuit, and the first handheld calculator.
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| William Gates III | Founder of Microsoft Corporation
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| Paul Allen | Co-owner of Microsoft Corporation
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| Thomas Knoll & John Knoll | Creators of Photoshop.
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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:
leyannacabrera
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