The term computer has brought a revolution in today’s world. All the tasks that were earlier performed with man power are now being performed more efficiently with the help of computers. Computer has provide a job opportunities to large number of youths and thus have led to an all round development of the society. Due to the coming of computers a new industry known as the computer industry has developed. Various new IT companies have come forward and are engaged in researching, developing and manufacturing of various types of products related to computers. A computer comprises of various components, hardware components being one of them. Computer hardware can be described as the physical features of the computers that include digital circuitry etc. In comparison to software (the parts used within the hardware) computer hardware is not changed or modified much.
output device
input device
computer science the complete reference
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