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In how many modes does 80386 can run?

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In how many modes does 80386 can run?

(a) 2

(b) 4

(c) 3

(d) 5

The question was asked in semester exam.

I'm obligated to ask this question of Features of Intel topic in portion Embedded Processors of Embedded Systems

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The correct answer is (c) 3

Easy explanation: The 80386 can run in three different modes: the real mode, the protected mode, and a virtual mode. In real mode, the size of each segment is limited to 64 Kbytes and in protected mode, the largest segment size is increased to 4 Gbytes and the virtual mode is a special version of the protected mode.

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