2022年12月23日 · The abacus is one of many counting devices invented to help count large numbers. The difference between a counting board and an abacusIt is important to distinguish …

2022年4月28日 · The abacus was invented several thousand years ago. There was nobody around to take a picture of the inventors. The forerunner of the camera was invented less than …

2022年4月28日 · China invented the abacus . Krishtina Lama ∙ . Lvl 2

The first reported and substantiated use of an abacus, or abacus-like instrument was in Sumeria between 2,700 and 2,300 BCE - or roughly 4,700 years ago.This used a table of columns with …

the country that invented the abacus is China. Actually it is unknown as the abacus seems to predate recorded history and different versions were independently invented in various places.

2023年10月3日 · The abacus was invented by the ancient Chinese people and was used to perform mostly mathematical calculations. In Japan, even to this day, the abacus is still used …

2023年9月20日 · The Chinese around 3000 BC invented the Abacus was the first calculating machine. The French Joseph Marie Jacquard invented the first programmable machine with …

2022年11月11日 · An abacus is not a computer system as zero parts of the abacus are electrical. For the abacus to be a computer system, it has to have an input, output and process and store …

2023年9月13日 · What is the history of the 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 …

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 ... Who invented the machine called …