The Abacus: Introduction
A Brief Introduction to the Abacus ... The abacus is typically constructed of various types of hardwoods and comes in varying sizes. ...

Abacus - Wikipedia, the free encyclopedia
An abacus, also called a counting frame, is a calculating tool used primarily by ... The abacus was in use centuries before the adoption of the written modern ...

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Offers information on flight sim software and computer books. ... About Abacus. What's New? ... Welcome to Abacus. Since 1978 we've been delivering quality ...

Epsilon
(Click to enlarge) abacus ( School Division, Houghton Mifflin Company) abacus n. , pl. abacuses or abaci ... Sci-Tech Encyclopedia: Abacus ...

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abacus law legal software is law office software providing case management, calendaring, accounting, and legal time billing for lawyers and law office staff.

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Abacus - Australian Mutuals is the peak industry association for Australian mutual building societies and credit unions.

abacus - Definitions from Dictionary.com
noun, plural ab?·a?·cus?·es, ab?·a?·ci Audio Help / ???¦b ?™??sa??, -??ka??, ?™??b?¦k a?? / Pronunciation Key - Show Spelled Pronunciation [ab-uh-sahy, -kahy, uh-bak-ahy] ...