BASIC COMPUTER CONCEPTS
HISTORY OF COMPUTERS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Yes
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No
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Either A or B
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None of the above
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Detailed explanation-1: -ENIAC (Electronic Numerical Integrator And Computer) was the world’s first general-purpose computer. ENIAC was designed and built for the United States Army to calculate artillery firing tables. However, it was ENIAC’s power and general-purpose programmability that excited the public’s imagination.
Detailed explanation-2: -It used plugboards for communicating instructions to the machine; this had the advantage that, once the instructions were thus “programmed, ” the machine ran at electronic speed. Instructions read from a card reader or other slow mechanical device would not have been able to keep up with the all-electronic ENIAC.
Detailed explanation-3: -The initial design of the ENIAC did not use anything like the software we know today. It was basically an assembly of “functional units” that were wired together in a particular way for each new problem. If you wanted to do a multiplication after an addition, you would run a wire from the multiplier to the adder.
Detailed explanation-4: -Without an operating system, a computer is useless.