They are not used commercially but are still commonly used in schools for basic maths education.
Yes they were the calculators of the past. A few people still use them today.
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The Mesopotamians are believed to be the first civilization to have used abacuses, between around 2700-2300 BC.
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Plural of abacus: abaci or abacuses.
Normally we say abacuses, pronounced "abba cusses;" some particular people use abaci, usually pronounced "abba sigh." The excruciatingly correct pronounce abaci like a Roman "abba key."
Yes, abacuses (or is it abaci?) were used to calculate simple maths problems.
The Latin word calculus means "pebble". It is still used this way in medicine, where "calculus" can be used to refer to a kidney stone or gallstone, and by extension to the mineral buildup on teeth also called "tartar".The mathematical term "calculus" derives from the ancient use of pebbles as counters on counting tables (abacuses).
It is different because modern math sometimes uses calculators and traditional math did not have calculators.I think that they used abacuses or other methods such as your fingers
Abacuses are still used today inmany ways. One way is we use them to keep score in some games. Some models of air hockey and Foosball tableshave them as a score system.
It's one of the plural forms of Abacus - a counting frame. The other plural form is 'Abbaci'
an abacus is a Chinese type of adding machine and can still be found in authentic Chinese laundries. i remember i guess it was the 1st grade we had an abacus in the class room and you can also find them on baby toys and cribs . they are round differantly colored bits of wood and slide back and forth. i read somewhere that they were used in china a couple of thousand years ago