KRANTHI INSTITUTE OF TECHNICAL EDUCATION
K I T E
The abacus also called a counting frame is a calculating tool used primarily in parts of Asia for performing
arithmetic processes. Today, abaci are often constructed as a bamboo frame with beads sliding on wires, but originally they were beans or stones moved in grooves in sand or on tablets of wood, stone, or metal. The abacus was in use centuries before the adoption of the written modern numeral system and is still widely used by merchants, traders and clerks in Asia, Africa, and elsewhere. The user of an abacus is called an abacist.
The Chinese abacus was developed about 5000 years ago. It was built out of wood and beads. It could be held and carried around easily. The abacus was so successful that its use spread form China to many other countries. The abacus does not actually do the computing, as today's calculators do. It helps people keep track of numbers as they do the computing.
Invention: Abacus
Function: noun / ab:a:cus
Definition: A Counting device. A mechanical device for making calculations consisting of a frame mounted with rods along with beads or balls are moves
Inventor: Chinese in 3000 BC
The time line of the abacus history:
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3000 BC: An early form of ABACUS finds its origin in china
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1000 BC: The counting boards are used by the Chinese.
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500 BC: Counting boards are used by Romans and Greeks.
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300 BC: Abacus finds extensive usage as a counting device in china
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500 AD: Europe starts using abacus.
Different Types of ABACUS:
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Indian Abacus
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Chinese Abacus
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Babylonian Abacus
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Egyptian Abacus
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Greek Abacus
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Roman Abacus
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Japanese Abacus