Which memory location holds the specific CPU machine instruction that is currently being decoded and executed by the internal instruction logic? MCQ with Answer and Explanation
Which memory location holds the specific CPU machine instruction that is currently being decoded and executed by the internal instruction logic?
A. Instruction Register (IR)
B. Memory Address Register (MAR)
C. The Level 3 Cache
D. The Program Counter
Answer: Option A
Solution (By JKSSB Mock Tests)
The Instruction Register (IR) is the dedicated high-speed storage location inside the CPU control unit that holds the binary instruction currently undergoing decoding and execution.
Explanation:
DRAM stores data using capacitors, which lose charge over time. This design requires continuous refreshing cycles, introducing latency that makes it slower than SRAM.
Explanation:
VRAM (Video RAM) or GDDR (Graphics Double Data Rate) is specialized memory designed to handle the massive bandwidth required by graphics processors.
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