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What are the different modes of operation of a computer?

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What are the different modes of operation of a computer?

(a) User and System mode

(b) User and Supervisor mode

(c) Supervisor and Trace mode

(d) Supervisor, User and Trace mode

This question was posed to me in a national level competition.

This question is from Exceptions topic in portion Input/Output Organisation of Computer Architecture

1 Answer

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Correct answer is (b) User and Supervisor mode

Easy explanation: The user programs are in the user mode and the system crucial programs are in the supervisor mode.

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