What is the role of cache memory in computer architecture and how is it designed and evaluated?

Cache memory is a type of high-speed memory that is used to store frequently used data and instructions in a computer system. It plays a critical role in computer architecture by improving the performance of the system and reducing the number of times that data needs to be fetched from slower main memory. The role of cache memory in computer architecture can be understood by considering the memory hierarchy. The memory hierarchy is a way of organizing different types of memory in a computer system based on their speed and capacity. At the top of the hierarchy, there are small but fast CPU registers, followed by cache memory, main memory, and finally, secondary storage. Cache memory is located between the CPU and main memory and acts as a buffer between these two levels of the hierarchy. It is designed to provide fast access time....