2. a. Discuss how it is possible to achieve the benefit of large low cost and high speed memory with the cache-main memory hierarchical organization? Discuss the two properties of computer (2 Marks) programs that make it feasible to meet this goal b. A direct-mapped cache system is required to store a total of 64KB data with each cache block containing 32 4-byte words. Assuming the 32-bit byte addressing as in MIPS architecture, (2 Marks) calculate the percentage of memory overhead. c. Explain briefly the addressing scheme in the cache system of 2.b. with a diagram showing the hit/miss logic and the method of accessing an individual word in a cache block in case of a hit. (3 Marks) 2. a. Discuss how it is possible to achieve the benefit of large low cost and high speed memory with the cache-main memory hierarchical organization? Discuss the two properties of computer (2 Marks) programs that make it feasible to meet this goal b. A direct-mapped cache system is required to store a total of 64KB data with each cache block containing 32 4-byte words. Assuming the 32-bit byte addressing as in MIPS architecture, (2 Marks) calculate the percentage of memory overhead. c. Explain briefly the addressing scheme in the cache system of 2.b. with a diagram showing the hit/miss logic and the method of accessing an individual word in a cache block in case of a hit