what is a computer? how is it a useful device
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A computer is a programmable machine. The two principal characteristics of a computer are: It responds to a specific set of instructions in a well-defined manner and it can execute a prerecorded list of instructions. It is useful device for students for making projects and getting information of something.
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a computer is an electronic device that can perform a variety of operation according to a set of instruction called program. computer is a useful device because it is used nearly in all field like it is used in business medicine health care communication education etc
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