What is the main purpose of cache memory in a computer?

Correct option is C

The correct answer is: (C) To store frequently accessed data for quick retrieval

Explanation:

• Cache memory is a small, high-speed memory located between the CPU and RAM.

• Its primary function is to store frequently accessed data and instructions to allow faster retrieval by the processor.

• By storing data that is repeatedly used, cache memory reduces the time it takes for the CPU to access data from the slower main memory (RAM), improving system performance.

• Cache memory operates at much higher speeds than RAM, making it an essential component for efficient processing.

Information Booster:
• Levels of Cache: Cache memory is typically divided into multiple levels (L1, L2, L3), with L1 being the fastest and smallest, located directly within the CPU.
• Speed and Efficiency: The closer the cache is to the CPU, the faster it can deliver data, significantly reducing processing time.
• Cache Hit and Miss: When the CPU retrieves data from the cache, it is called a cache hit; when the data is not found in the cache and must be fetched from RAM, it is a cache miss.
• Cache Size: Cache memory is much smaller in size compared to RAM, but its speed is critical for high-performance computing.
• Impact on Performance: A well-sized cache memory can greatly improve the overall speed of the system, particularly in tasks that involve repeated data retrieval.