COMPUTER FUNDAMENTALS

COMPUTER ARCHITECTURE

CPU ARCHITECTURE AND ORGANIZATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Instructions are fetched from main memory
A
True
B
False
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -The CPU instruction register can point anywhere in the address space. If it happens to point to RAM, then it will fetch instructions from RAM. If it happens to point to ROM, then it will fetch instructions from ROM.

Detailed explanation-2: -The control unit fetches the instruction’s address from the memory unit.

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