Question

Which of the block is not considered as a block of an architecture of 80286?

(a) address unit

(b) bus unit

(c) instruction unit

(d) control unit

I have been asked this question by my college director while I was bunking the class.

This intriguing question comes from Internal Architecture of 80286 topic in division 80286-80287-A Microprocessor with Memory Management and Protection of Microprocessor

Answer 1

Correct choice is (d) control unit

For explanation: The CPU may be viewed to contain four functional parts and they are

i) Address Unit

ii) Bus Unit

iii) Instruction Unit

iv) Execution Unit.