abacus was used in 300 B.C by the Babylonians. (The oldest) always the oldest from long time ago.
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
the abacus is made by the Egyptian in Egypt.
Abacus was invented by the Chinesethe abacus was also known as the first computer
actient china
The answer is China.
actient china
The abacus first appeared around the period 2700-2300 BC in Sumeria.
abacus was used in 300 B.C by the Babylonians. (The oldest) always the oldest from long time ago.
The Chinese are probably the first , but the Romans made them maybe 100 years later.
The Chinese abacus
abacus Casio made the first graphing calculator in 1985.
The Ancient Chinese made the first means for counting with the 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
the abacus is made by the Egyptian in Egypt.
keyboard,usb,CPU, and you ! ")