BASIC COMPUTER CONCEPTS
HISTORY OF COMPUTERS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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UNIVAC
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Abacus
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Jacquard Loom
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Slide Rule
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Detailed explanation-1: -ABACUS (3003 BC) Upper Beads • The abacus was invented in 3000 BC in Babylonia. Deck Beam • It consists of beads on rods to count and calculate. Rods Lower • It is still widely used in Asia.
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: -The earliest known calculating device is probably the abacus. It dates back at least to 1100 bce and is still in use today, particularly in Asia. Now, as then, it typically consists of a rectangular frame with thin parallel rods strung with beads.
Detailed explanation-4: -What is abacus? Ans. Abacus was the first mechanical calculating device, developed by Chinese about 5000 years ago. It was used for counting large numbers and doing arithmetic calculations such as addition, subtraction, multiplication and division.
Detailed explanation-5: -After the development of the abacus, no further advances were made until John Napier devised his numbering rods, or Napier’s Bones, in 1617.