A computer consists of
AA central processing unit
BA memory
CInput and output units
DAll of the above ✓ Correct
Correct answer: (D) All of the above
Explanation
A computer consists of all of these, namely a central processing unit, a memory and input and output units.
The central processing unit alone is only the processing part of the machine.
Memory alone is only where data and instructions are stored.
Input and output units alone handle only communication with the user.
These parts work together following the basic model of a computer system.
The CPU processes data held in memory and exchanged through the input output units.
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