Abacus

Deutsch: Ein Abakus ist Hilfsmittel zum Ausführen verschiedener Rechenoperationen.

English: An Abacus is a calculation tool.

Norsk nynorsk: Ei Kuleramme er eit reknehjelpemiddel.

Русский: Абак, счёты.

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  An abacus from a Danish elementary school. Early 20th century.
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  A Chinese (top) and a Japanese (bottom) abacus
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  A Russian abacus
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  Reconstruction of a Roman abacus
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  Image of an abacus from Encyclopedia Britannica
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  A Chinese abacus
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  A big Chinese abacus
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  A long Chinese abacus
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  A Japanese soroban
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  German abacus
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  An example of addition using an abacus
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  A Chinese abacus (top) and a Japanese abacus (bottom). Despite the appearances, both are actually made in Mainland China.

Abacus in art

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  Hokusai, 1760

Abacus in Medieval Pictures

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• File:Abacus Figure of Robert Record.JPG
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