COMPUTER HISTORY AND EVOLUTION
DEVELOPMENT OF COMPUTERS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Laptop
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Desktop
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Abacus
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Altair
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Detailed explanation-1: -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-2: -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-3: -SUAN-PAN. The abacus, called Suan-Pan in Chinese, as it appears today, was first chronicled circa 1200 C.E. in China. The device was made of wood with metal re-inforcements. On each rod, the classic Chinese abacus has 2 beads on the upper deck and 5 on the lower deck; such an abacus is also referred to as a 2/5 abacus.