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Identify the correct order of the types of secondary storage listed below, from fastest to slowest access time.

1.Optical
2.Solid state
3.Magnetic
A2, 1, 3
B1, 3, 2
C3, 1, 2
D2, 3, 1 ✓ Correct
Correct answer: (D) 2, 3, 1
Explanation

Solid-state storage has the fastest access time because it uses flash memory with no moving parts.

Magnetic storage, like a hard disk, is next, faster than optical but slower than solid state.

Optical storage, such as CDs and DVDs, is the slowest owing to spinning discs and laser reading.

This gives the order solid state, then magnetic, then optical.

Access time measures how quickly data can be located and retrieved.

Solid-state drives have largely replaced hard disks where speed matters most.

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