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What is an abacus?

Carlton Burgess

in Student Loans

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Zach Chandler on December 12, 2019

An abacus is a counting device that uses balls on a table or stringthat represent numbers. The device is divided into columns, eachcolumn represents a multiple of 10 (x10, x100, x1000, etc) andeach column has 10 accounts. This allows the numbers to be formedby reorganization of the accounts, this means that simple and complexarithmetic can be performed on the abacus. The abacus was invented around 2700-2300 B.C., by the Sumerians(Mesopotamia) ; that makes the invention about 4,400 years old


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