COMPUTER FUNDAMENTALS

COMPUTER HISTORY AND EVOLUTION

DEVELOPMENT OF COMPUTERS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
First mechanical device used for calculation
A
Calculators
B
Napier’s bones
C
Abacus
D
Difference engine
Explanation: 

Detailed explanation-1: -The first calculating device that was invented was the Abacus. It is a manual calculating device that consists of rows of beads representing a place of value and digits. The abacus was invented by Blaise Pascal in the year 1642.

Detailed explanation-2: -Alternatively called the counting frame, an abacus is a mechanical device used to assist a person in performing mathematical calculations and counting.

Detailed explanation-3: -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.

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