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The earliest calculating device is the abacus.- http://cs.furman.edu/digitaldomain/focus/history/earlyhist1.html

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The History of The Calculators is Split into 4 Ages:

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The History of The Calculators is Split into 4 Ages:

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*Beginnings: The Mechanical Age
*Business Calculator: The Electronic Age
*Pocket Calculator: The Microchip Calculator
*Calculators Now: Virtual Age
http://www.thecalculatorsite.com/articles/units/history-of-the-calculator.php?page=2

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The First Hand-Held Electronic Calculator 

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The First Hand-Held Electronic Calculator 

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-was invented by Jack St. Clair Kilby, Jerry D. Merryman, and James H. Van Tassel in 1966.
-http://www.ideafinder.com/history/inventions/handcalculator.htm

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- you can do more than just multiply, divide, subtract, and add.

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Team Members : Maggie Marroquin & Jordan Pringle

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Team Members : Maggie Marroquin & Jordan Pringle

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Maggie did: Background of invention, define the problem, Refine and Improve, Brainstorm Ideas

Jordan did: List of Innovations, Research & outline of evolutionary history, select an approach, and Communicate Results

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-First battery power hand held calculator made in 1969
-First solar powered calculator in 1978