abacus
a buh kuhs
- n a tablet placed horizontally on top of the capital of a column as an aid in supporting the architrave
- n a calculator that performs arithmetic functions by manually sliding counters on rods or in grooves
- Bubnov holds that the forms first found in Europe are derived from ancient symbols used on the abacus, but that the zero is of Hindu origin.
- Even today some clerks and small businessmen in those countries prefer to use abacus and do calculations quickly than their counterparts using electronic calculators.
- Abacus is also used to teach blind children to perform arithmetical calculations while other students learn the same things on paper.