BASIC COMPUTER CONCEPTS
HISTORY OF COMPUTERS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A machine that makes calculations
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An electronic device that makes calculations
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A person that make calculation
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A device with sliding beads used for making calculations
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Detailed explanation-1: -The term “computer", in use from the early 17th century (the first known written reference dates from 1613), meant “one who computes": a person performing mathematical calculations, before electronic computers became commercially available.
Detailed explanation-2: -Definition of a Computer-before 1935, a computer was a person who performed arithmetic calculations. Between 1935 and 1945 the definition referred to a machine, rather than a person.
Detailed explanation-3: -The word “Computer” comes from the word “compute” which means to calculate. A computer is an electronic device, which stores and processes data to give meaningful information. Processing is done with the help of instructions given by the user, which are also stored within the computer.
Detailed explanation-4: -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-5: -A computer is a device that accepts information (in the form of digitalized data) and manipulates it for some result based on a program, software, or sequence of instructions on how the data is to be processed.