chinese are white and japanese are short
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.
The Chinese abacus
abacus the Chinese invented it
the Chinese invented the abacus
abacus was not invented by chinese, but by babylonians.
The difference is that an abacus uses beads to calculate. A calculater uses solar energy or batteries to make its digital numbers. In other words an abacus uses beads and a calculater uses buttons you press to put numbers on the calculaters screen.
abacus is an ancient calculating tools while an computer is a modern tools.
An abacus is an ancient Chinese calculator that is still in use today.
Calculation by certain procedure is maths whereas calculation by fingers,mind etc., is abacus
"Answer"The abacus was created 3000Bc ago by the chinese.
An abacus is an ancient mathematical tool invented by the Japanese.
The earliest known written record of the Chinese abacus dates to the 14th century AD.