Question

what is computer???

Answer 1

ANSWER:

An electronic device that stores and manipulates information. Unlike a calculator, it is able to store a program and retrieve information from its memory. Most computers today are digital, which means they perform operations with quantities represented electronically as digits.

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Answer 2

Computer is an electronic machine which converts data into information.
It is helpful in storing data, calculation etc.

Or
A computer is a device that can be instructed to carry out sequences of Arithmetic or logical operation automatically through computer.