World's First Calculating Device - The Abacus
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YouTubeKnow The Science
World's First Calculating Device - The Abacus
The abacus also called a counting frame, is a calculating tool. It has been used since ancient times. It was used in the ancient Near East, Europe, China, and Russia, centuries before the adoption of the Arabic numeral system. The exact origin of the abacus has not yet emerged. It consists of rows of movable beads, or similar objects, strung on ...
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