COMPUTER FUNDAMENTALS

COMPUTER HISTORY AND EVOLUTION

EVOLUTION OF COMPUTER SOFTWARE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
First calculating device is ____
A
Abacus
B
Pascaline
C
Napier’s Bones
D
Engine
Explanation: 

Detailed explanation-1: -abacus, plural abaci or abacuses, calculating device, probably of Babylonian origin, that was long important in commerce. It is the ancestor of the modern calculating machine and computer.

Detailed explanation-2: -The abacus (plural abaci or abacuses), also called a counting frame, is a calculating tool which has been used since ancient times. It was used in the ancient Near East, Europe, China, and Russia, millennia before the adoption of the Hindu-Arabic numeral system.

Detailed explanation-3: -Ancient Mesopotamians of Sumeria invented Abacus between and BC.

Detailed explanation-4: -Blaise Pascal invented a mechanical calculator with a sophisticated carry mechanism in 1642. After three years of effort and 50 prototypes he introduced his calculator to the public. He built twenty of these machines in the following ten years.

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