Question

abacus was a first calculating device​

Answer 1

Step-by-step explanation:

The earliest known calculating device is probably the abacus. It dates back at least to 1100 BCE.The abacus, generally in the form of a large calculating board, was in universal use in Europe in the Middle Ages, as well as in the Arab world and in Asia. It reached Japan in the 16th century.

Explanation:

Hope it helps you

Answer 2

hope it help u..!.!.!!.!.!.