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3 Answers

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2 votes
Instruction Cache – Used for storing instructions that are frequently used.

Instruction Register – Part of CPU’s control unit that stores the instruction currently being executed.

Instruction Opcode – It is the portion of a machine language instruction that specifies the operation to be performed.

Translation Lookaside Buffer – It is a memory cache that stores recent translations of virtual memory to physical addresses for faster access.

So, all the above except Instruction Opcode are memories.

Thus, C is the correct choice.

Ref: www.geeksforgeeks.org/gate-gate-cs-2002-question-13/
1 votes
1 votes
None of them is form of main memory, but instruction opcode is not a memory its part of instruction . So answer will be C
0 votes
0 votes
Although Instruction cache, instruction register and TLB are not main memories ( they are register, cache), still Instruction opcode means operation and not memory. Hence option C is correct.
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