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Who invented abacus?

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  • Who invented abacus?


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The abacus (plural abaci or abacuses), also called a counting frame, ... The decimal number system invented in India replaced use of abacus in Western Europe.
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Positive: 78 %
Although it is unknown precisely who invented the abacus, the device was developed in China around 3000 B.C. It is highly compact and easy to use and forms ...
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Positive: 75 %

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Pascal's calculator is a mechanical calculator invented by Blaise Pascal in the early 17th century. It was called the arithmetic machine and later became ...
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Positive: 78 %
Therefore, people invented the first calculator-abacus. The origin of abacus can be traced back to 600 BC in the Spring and Autumn Period.
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Positive: 73 %
The history of abacus dates back to nearly 2500 years back. The Abacus is an ancient mathematical instrument used for calculation it is one of the world ...
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Positive: 59 %
Define invented. invented synonyms, invented pronunciation, invented translation, English dictionary definition of invented. tr.v. in·vent·ed , ...
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Positive: 36 %

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