Definition
Digital computation device. There are many varieties of calculators such as graphing calculators, scientific calculators, and printing calculators. Financial websites have also developed online calculators that can determine financing interest rates and payments. The invention of calculators has decreased the time that is required to calculate complex figures and reduced commons errors that can happen when numbers are calculated by hand.
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A Statement Made in 1949 About Computers
Where a calculator on the ENIAC is equipped with 18,000 vacuum tubes and weighs 30 tons, computers in the future may have only 1,000 vacuum tubes and perhaps weigh 1.5 tons. (Popular Mechanics article ... Read more
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