Abacus


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Abacus

An instrument allowing one to quickly add and subtract numbers. Generally, an abacus is composed of a rectangular frame in which horizontal rods are partially covered with beads. The beads may be moved one way or the other to make calculations. It was invented in China in the 2nd century CE and is considered the earliest calculator.
References in periodicals archive ?
"Most Thai children don't like mathematics, but after the abacus was introduced I found they enjoy mathematics," she said.
Gronkowski said he looks forward to introducing new products with Abacus in the hope of helping millions of Americans balance their active lifestyles with healthy recovery.
To learn more about Abacus Studios visit them on their web site.
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Abacus has a good fit with our existing Healthcare businesses in Australia and New Zealand and opens up further growth opportunities."
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A Cardiff council spokesman said The Abacus's licence was due to expire at the end of the month and the authority wanted to find the venue a new home nearby.
The Abacus , in Wood Street in the city centre, announced the news on its Facebook page, with owners saying the news had come as a "complete shock".
Abacus, a leading business advisory firm with a portfolio of elite multinational clients announces the appointment of Marianna Charalambous as Head of Energy.