Order the memory hierarchy from fastest to slowest:

2025

Order the memory hierarchy from fastest to slowest:

  1. A.

    Registers → Cache → Main memory → Disk

  2. B.

    Cache → Registers → Main memory → Disk

  3. C.

    Disk → Main memory → Cache → Registers

  4. D.

    Main memory → Cache → Registers → Disk

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Correct answer: A

The usual memory hierarchy from fastest to slowest is registers, cache, main memory, and then disk.

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