BASIC COMPUTER CONCEPTS
HISTORY OF COMPUTERS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Calculator
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Abacus
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Slide Rule
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All of the above
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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: -There were many devices that were introduced in early times for calculation purposes and some of the devices that were used most often are Abacus, Pascal’s calculator, Arithmometer, Comptometer.
Detailed explanation-3: -Machines such as the Z3, the Atanasoff–Berry Computer, the Colossus computers, and the ENIAC were built by hand, using circuits containing relays or valves (vacuum tubes), and often used punched cards or punched paper tape for input and as the main (non-volatile) storage medium.
Detailed explanation-4: -Early computing machine Abacus: The Abacus, which emerged about 5, 000 years ago in Asia, can be considered as the first computer. It was an early aid for mathematical computations. It is made up of wooden frame with several rows having beads.