WHAT IS THE ABACUS ๐งฎ
5000 Years ago, The "abacus" was developed in china in 3000 B.C. The abacus means calculating board. The "abacus " may be considered the frist computer and it has been used since ancient times by a number of civilizations for basic arithmetic calculation.
:- The abacus called a counting frame which is a calculating tool for performing arithmetic operations.
:- Chinese abacus has a frame holding vertical wires with 7 beads on each wire a horizontal divider separates the top two beads from the bottom five beads by using the principle of positional weight of beads on a rack.
Abacus today use even to teach small children how to count.
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