Which memory is very high-speed memory placed in between RAM and CPU?

The correct answer is Cache memory.

Key Points

• Cache memory is a type of high-speed memory that is placed between the CPU and RAM to speed up the overall process of data access.
  • Cache memory stores frequently accessed data and instructions so that the CPU can access them more quickly than fetching from the main memory (RAM).
  • It significantly reduces the time needed to access data from the main memory, thus enhancing the speed and performance of the computer.
  • Cache memory is usually much smaller in size compared to RAM but operates at a much higher speed.
  • There are different levels of cache memory, such as L1, L2, and L3, each with varying speeds and sizes, with L1 being the fastest and smallest.

Additional Information

• Cache memory is implemented in both hardware and software. Hardware caches are built into the CPU, while software caches are managed by the operating system.
• Modern processors use multi-level caches to improve performance. L1 cache is typically located within the processor chip itself, while L2 and L3 caches might be on separate chips or part of the same chip.
• Effective cache memory management is crucial for system performance, as it reduces latency and improves throughput for data-intensive applications.
• While cache memory is more expensive than RAM, the performance benefits it provides make it a critical component in modern computing systems.