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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Analytical engine
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Napier’s Bones
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Abacus
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None of the above
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Detailed explanation-1: -Abacus was made up of wooden frame with rods, each having beads.
Detailed explanation-2: -An abacus consists of a wooden frame, rods, and beads. Each rod represents a different place value-ones, tens, hundreds, thousands, and so on. Each bead represents a number, usually 1 or 5, and can be moved along the rods. Addition and subtraction can easily be performed by moving beads along the wires of the abacus.
Detailed explanation-3: -The Abacus is the first calculating device developed by human beings which is made up of a wooden frame having two parts-upper deck and lower deck which contains 11 vertical rods with each rod consisting of movable beads.
Detailed explanation-4: -The classic abacus has two decks. Each deck, separated by a beam, has several (normally 13) rods on which are mounted beads.