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Medium 2 Marks

Computer Studies Computer Memory

How does cache memory improve CPU performance?

A By increasing the clock speed of the CPU

B By replacing RAM entirely

C By storing frequently used data close to the CPU so it is retrieved faster than from RAM

D By compressing data to save storage space

Explanation

Instead of repeatedly accessing RAM the CPU first checks whether required data is in cache. If found it is accessed much faster reducing processing delays.

Reference: Computer Studies Textbook , Page 4

Hint

What happens when the CPU finds data in cache instead of going to RAM?

Explanation

Hint

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