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Yes they were the calculators of the past. A few people still use them today.
They are not used commercially but are still commonly used in schools for basic maths education.
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."
"Today, abacuses 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." ~ Wikipedia
Yes, abacuses (or is it abaci?) were used to calculate simple maths problems.
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 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
It's one of the plural forms of Abacus - a counting frame. The other plural form is 'Abbaci'
In the past, tools used for education included chalkboards, textbooks, paper and quill pens, slate boards, abacuses for math, and globes for geography. These tools were commonly used to facilitate learning in classrooms before the advent of modern technology.