Correct option is A
Cache memory is a small, high-speed memory located inside the CPU (Central Processing Unit). It stores frequently accessed data and instructions to speed up processing. Cache memory reduces the time needed to access data from the main memory (RAM), improving the overall system performance.
- Levels of Cache Memory:
- L1 Cache (Primary Cache): Located inside the CPU, the fastest but smallest in size.
- L2 Cache (Secondary Cache): Slightly larger and slower than L1, but still inside or very close to the CPU.
- L3 Cache: Found in multi-core processors, shared among all cores for enhanced efficiency.
- Cache memory operates at a higher speed than RAM and helps the processor fetch instructions quickly.
- RAM (Random Access Memory): A volatile memory that temporarily stores data and programs actively being used by the system. It is much slower than cache memory.
- CU (Control Unit): A part of the CPU that directs the operation of the processor.
- Monitor: A display device used to output visual information.