Abacus/Definition

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< Abacus
Revision as of 18:24, 16 June 2008 by imported>Derek Hodges (New page: <noinclude>{{Subpages}}</noinclude> A mechanical aid to performing arithmetic which dates back many centuries and is still used in modern times.)
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A definition or brief description of Abacus.

A mechanical aid to performing arithmetic which dates back many centuries and is still used in modern times.