What is Abacus? When and by whom it was invented?

1.	What is Abacus? When and by whom it was invented?
Answer» An abacus, also known as a counting frame, is a calculating tool with beads that slide across on wires or rods. May not answer this directly, butTim Cranmer inventedtheCranmer abacus. The oldest surviving counting board is the Salamis tablet (originally thought to be a gaming board), used by the Babylonians circa 300 B.C.,discoveredin 1846 on the island of Salamis. Theabacusis still used in China and Japan.

Answer»

An abacus, also known as a counting frame, is a calculating tool with beads that slide across on wires or rods.

May not answer this directly, butTim Cranmer inventedtheCranmer abacus. The oldest surviving counting board is the Salamis tablet (originally thought to be a gaming board), used by the Babylonians circa 300 B.C.,discoveredin 1846 on the island of Salamis. Theabacusis still used in China and Japan.

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What is Abacus? When and by whom it was invented?

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