FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Mesopotamia. The Sumerian abacus appeared between 2700 and 2300 BC. It held a table of successive columns which delimited the successive orders of magnitude of their sexagesimal (base 60) number system.

Detailed explanation-2: -3000 B.C. The abacus is developed in Babylonia.

Detailed explanation-3: -The invention of the Abacus occurred in Sumeria around 2700 to 2300 B.C.E. using a base 60 system, but the oldest known abacus example is the Salamis Tablet in Greece in 300 B.C.E.

Detailed explanation-4: -The abacus was invented in Babylonia in the years of 3000 B.C. The abacus is a frame that has rows, and in each row their are beads and it helps with calculating. And the creator of the Abacus is Tim Cranmer. They still use the Abacus in Asia, Africa, and the Middle East.

Detailed explanation-5: -The abacus is one of many counting devices invented in ancient times to help count large numbers, but it is believed that the abacus was first used by the Babylonians as early as 2, 400 B.C.1 The abacus was in use in Europe, China, and Russia, centuries before the adoption of the written Hindu-Arabic numeral system.