An abacus is used as a tool to train children how to perform complex mathematical operations quickly and efficiently. One of the advantages of an abacus is that it gives a color coded physical representation of a number system. This allows a student proficient with an abacus to eventually start performing mathematical operations in his/her head as they can visualize how the abacus would look if they were to perform the operation physically. The abacus has another positive use as it is a good teaching tool to help blind students learn math.
It is significant because it was the precursor to the modern calculator. It is a portable device that can be carried on person to perform mathematical operations without the need for a writing instrument or paper.
Source: http://en.wikipedia.org/wiki/Abacus
China invented the abacus .
ABACUS
How did the abacus occur?
An Abacus has beads and strings.
The Chinese abacus
the history about the abacus is that 3000 years ago the chinese invented the abacus. The abacus was made of wood parrelel rod and beads.
it is the abacus. :D :D :D i got is dummies
The abacus II!
the Chinese invented the abacus
the invenor of the abacus is the invenor of me
Abacus was invented by the Chinesethe abacus was also known as the first computer
the antonym for abacus is future calculator