The abacus was invented before cameras and so no photograph exists.
People realized that they could only count so high with their fingers and toes, so the abacus was invented as an early calculator.
The Chinese abacus
the inventer to the abacus is unknown but all that i know so far is that its was invented in babylonia and was made with wood when first invented
Because it was the first portable counting device - sort of the first 'pocket' calculator !
That abacus is so old fashioned.
The abacus was invented before cameras and so no photograph exists.
The abacus is actually Mesopotamian in origin and so it was invented around the time of Mesopotamia.
People realized that they could only count so high with their fingers and toes, so the abacus was invented as an early calculator.
well here is the answer ! :)Some people use the abacus to solve some mathematical calculations
China invented the abacus .
ABACUS
How did the abacus occur?
An Abacus has beads and strings.
The Chinese abacus
the inventer to the abacus is unknown but all that i know so far is that its was invented in babylonia and was made with wood when first invented
Because it was the first portable counting device - sort of the first 'pocket' calculator !