They come in various sizes, but a typical abacus is about eight inches square.
An Abacus has beads and strings.
ABACUS is a name of a calculating apparatus - it is not an acronym.
If you are refering to Chinese abacus their earliest rudimentary design of abacus has 1/4 rod beads (quite similar to the later Japanese soroban abacus). Various other types of abacus design were also seen afterwards, but the advance type of 2/5 rod beads became standard and classic. Afterwards, the basic 1/5 rod beads particularly became the type of basic design. The Roman abacus may be not connected to the Chinese abacus.
They didn't invent it but they played a big part in carrying on the 'tradition', they had a different version of the original Mesopotamian ones.
abacus the Chinese invented it
China invented the abacus .
How did the abacus occur?
An Abacus has beads and strings.
The Chinese abacus
ABACUS
The abacus II!
the Chinese invented the abacus
the invenor of the abacus is the invenor of me
it is the abacus. :D :D :D i got is dummies
Abacus was invented by the Chinesethe abacus was also known as the first computer
the antonym for abacus is future calculator
China invented the Abacus.