Question

Consider the following types of memories.
(A) Hard Disk Drive (HDD)
(B) Cache Memory
(C) Random Access Memory (RAM)
(D) Registers
Arrange the above memories according to their access speed (from fastest to slowest):

• A. (D), (C), (B), (A)
• B. (A), (C), (B), (D)
• C. (B), (C), (A), (D)
• D. (D), (B), (C), (A)

Hint:

The fastest memory types are directly integrated into the processor, like registers and cache, while slower types like HDDs are used for large-scale storage.

Answer 1

The Correct Option is A

Memory Access Speed Analysis.

- Registers (D): Fastest; directly integrated with the CPU for immediate, small-scale data storage.

- Cache Memory (B): Faster than RAM; stores frequently accessed data for expedited retrieval.

- Random Access Memory (RAM) (C): Slower than cache, faster than HDD; serves as primary memory for active programs and data.

- Hard Disk Drive (HDD) (A): Slowest; mechanical storage for persistent, large-volume data retention.

Conclusion: The descending order of memory access speed is (D), (B), (C), (A).