1.

Which of the following holds the last instruction fetched?(a) PC(b) MAR(c) MBR(d) IRI had been asked this question in an interview for internship.I want to ask this question from CPU & Control Unit in chapter Processor & Memory of Computer Fundamentals

Answer»

Correct OPTION is (d) IR

To elaborate: The IR which stands for the instruction register CONTAINS the last instruction fetched.

All the OTHERS OPTIONS are registers which are used for the fetch operation.



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