Which of the following is correct sequence of increasing access time of…
2025
Which of the following is correct sequence of increasing access time of storage/memory devices?
A. Magnetic tape
B. RAM
C. Cache memory
D. Hard disk
E. Registers
Choose the correct answer from the options given below:
- A.
A, B, C, D, E
- B.
B, E, C, A, D
- C.
E, C, B, D, A
- D.
C, E, B, A, D
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Show answer & explanation
Correct answer: C
Final answer: E, C, B, D, A (Registers, Cache, RAM, Hard disk, Magnetic tape)
Reason: Order the storage/memory devices by increasing access time (from fastest to slowest).
Registers — fastest; very low access time (about 1 nanosecond).
Cache memory — slightly slower than registers but still very fast (a few nanoseconds).
RAM — slower than cache (tens of nanoseconds).
Hard disk — much slower than RAM (milliseconds range).
Magnetic tape — slowest access (often milliseconds to seconds for sequential access).
Therefore the correct sequence of increasing access time is: E, C, B, D, A.
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