a. (5 points) Suppose that you currently have a computer system with the following two characteristics: 1. There are only three components that determine the overall performance CPU, memory, and disk. 2. For any given computation, the system spends 40% of the time in the CPU, 40% of the time in the memory, and 20% of the time on the disk. Now suppose that you want to purchase a new system that improves the performance in the following ways: 1. The memory performance is 4 times faster over your current system, i.e., the new system spends 1/4 of the memory time compared to your current system. 2. The disk performance is 5 times faster over your current system, i.e., the new system spends 1/5 of the disk time compared to your current system. 3. Everything else is the same. Using Amdahl's Law, calculate the overall speedup of the new system over your current system. (Note: give the answer in fraction form; no need for arithmetics)