Question

What is computer ? How it is a useful device

Answer 1

a computer is anything that can do mathematical computations such as a cell phone, mp3, calculator, ect. Most people refer to "computer" as the personal computer, or pc. When many of these pc's are connected they can share information (like yahoo answers). And pc's are sometimes used for entertainment, business, and record keeping.

Answer 2

Answer:

Computer is a technology gift.Today it has proven to be a boon in human life.Computers nowadays are used in every field like sports,offices,schools etc.

hope this helps

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Explanation: