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Ancient times - The abacus is the main aid to calculation. ... 1964 - First all-transistor desk calculators - Friden EC130 & EC132, IME 84, Sharp Compet (Prices comparable to that of family cars).
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www.educalc.net/251086.page
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Ancient Scientific Calculators . . . 1 Running Head: Ancient Scientific Calculators Ancient Scientific Calculators by Stephen K. Stephenson B.S., M.Eng.(Elect.), M.Ed. High School Math Teacher sks23@cornell.edu 2005 by Stephen K. Stephenson, sks23@cornell.edu.
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www.sks23cu.net/TSA/CB10/sksAncientSciCalc.pdf
www.sks23cu.net/TSA/CB10/sksAncientSciCalc.pdf
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This paper builds on a previous one, Ancient Scientific Calculators (Stephenson), that demonstrated methods to use copies of The Salamis Tablet counting board for base 10 calculations with numbers formed in what we call scientific notation.
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www.sks23cu.net/TSA/CB60/index.html
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A look at the mechanical calculators that people used in the old days. It sure does have gone a long way since these calculators look bulky and simplistic. Check out more of ancient mechanical calculators with 4 more pics after the jump. ... Check out more of ancient mechanical calculators with 4 more pics after the jump.
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www.hemmy.net/2008/02/29/ancient-calculators/
www.hemmy.net/2008/02/29/ancient-calculators/
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Things certainly get more complicated as problems move into more advanced multiplication and division, but in the end the abacus continues to remain one of the most intuitive methods of mathematical problem solving the world has ever seen (prior to the advent of the "adding machine" and modern calculators and computers,
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mathchaostheory.suite101.com/article.cfm/the_value_of_t...
mathchaostheory.suite101.com/article.cfm/the_value_of_the_abacus
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A calculator is a device for performing mathematical calculations. Calculators can be hardware or software, and mechanical or electronic, and are often built into devices such as PDAs or mobile phones. Here you can see some photos of really old mechanical calculators...
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www.totalmania.net/ancient-calculators
www.totalmania.net/ancient-calculators
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The arithmetic racks will be created in each classroom kindergarten through grade 2. The materials will provide more than 380 students with their own "ancient calculator". The arithmetic rack can be used to support parents working at home with children as well as ... Completed: Help Us Create Ancient Calculators!
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www.donorschoose.org/donors/proposal.html?id=242269
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Ancient calculators - A calculator is a device for performing mathematical calculations. Calculators can be hardware or software, and mechanical or electronic, and are often built into devices such as PDAs or mobile phones.
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www.codewolf.com/story/article_1059974.html
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Forums » Electronic Medical Records ... » EMR Forum » Ancient Calculators vs EMRs ... Ancient astronomical device thrills scholars ... LONDON, England (Reuters) -- An ancient astronomical calculator made at the end of the 2nd century BC was amazingly accurate and more complex than any instrument for the next 1,000 years,
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www.emrupdate.com/forums/thread/59670.aspx
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