Known as a counting devise, the abacus has been in use for many centuries
The Sumarian abacus appeared as early as 2700 BC, The ancient Egyptians and the Persians also used the abacus
On the abacus.
China Answer: The abacus has a history going back to 2500 BCE when it was first used in Sumeria.Later and improved versions were in use in Babylonia, Egypt, Persia, India, China, Rome and Greece. There are reports of abaci in India as early as the 1st century CE. The first use of Chinese abacus is not documented until the 14th Century CE although there is evidence in Chinese illustrations that they were in common use as early as 1100 CE. It was similar to the modern abacus. From China the abacus spread into Japan and Korea.Some scholars point to an independent development of the abacus in Mesoamerica by the Mayans and Aztecs. These were of course based on the base 20 not 10 as in Asia and Europe.
A counting frame is the common name for an abacus. An abacus is a centuries old counting and calculating tool that is still widely used by merchants in Asia and Africa.
If this is a trick question, the answer is "fingers" (manual = of or done with the hand). If not, possibly an abacus. But, while most people have used their fingers for counting, very few have used an abacus.
That abacus is so old fashioned.
An abacus is an ancient mathematical tool invented by the Japanese.
well here is the answer ! :)Some people use the abacus to solve some mathematical calculations
Go and puncy one ande then se what hapens to your hand and then blame the abacus
China invented the abacus .
ABACUS
How did the abacus occur?
disadvantage of abacus
An Abacus has beads and strings.
The Chinese abacus
Her misoneism prevented her from embracing new technologies and innovations.
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.