Identify the correct order in which the following computer memories are ranked from largest to smallest in terms of storage capacity. Choose the correct answer from the options given below:

1.Cache

2.RAM

3.Hard Disk

4.Register

A3, 2, 4, 1

B4, 1, 2, 3

C2, 4, 3, 1

D3, 2, 1, 4 ✓ Correct

Correct answer: (D) 3, 2, 1, 4

Explanation

Ranked by storage capacity from largest to smallest the order is hard disk, RAM, cache and then register.

The hard disk holds the most, storing hundreds of gigabytes or terabytes of data.

RAM comes next, holding several gigabytes for the programs currently running.

Cache is smaller still, a few megabytes of very fast memory close to the processor.

A register is the smallest, holding just a single word of data inside the processor.

Capacity tends to fall as memory sits closer to the processor, while speed rises.

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