1. Accepts data & instructions from the user into the computer system.
2. Read data from the medium on which it is stored.
3. Converts the human-readable data into electronic/machine-readable form (i.e. a form that can be understood by the computer)
4. Accepts commands for running, halting or aborting a program from the user.
5. Data input can either be Online or Off-line.
Kavungya answered the question on April 2, 2019 at 09:39
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