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Hard 3 Marks

Computer Studies Computer Memory

Why is secondary storage slower than primary memory?

A Because secondary storage uses binary and primary memory uses decimal

B Because secondary storage is connected via USB and primary memory is not

C Because primary memory (RAM) is directly accessed by the CPU while secondary storage requires additional access mechanisms

D Because secondary storage is cheaper and cheaper always means slower

Explanation

Primary memory (RAM) is directly connected to the CPU allowing very fast access. Secondary storage devices like HDDs and SSDs use different interfaces and access mechanisms making them significantly slower.

Reference: Computer Studies Textbook , Page 6

Hint

Think about how directly RAM connects to the CPU compared to a hard drive.

Explanation

Hint

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