The input-process-output pattern, is a widely used approach in systems analysis and software engineering for describing the structure of an information processing program or other process.
I. Input :-
Computer takes some information into the user this information is called Input.
II. Process :-
Computer takes some time to perform the calculations this is called process.
III. Output :-
Computer displaying result is called Output.
See the below figures:-
Communication of Human to Human
Communication of Human to Computer
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