Problem #1: A computer's clock operates at 800 Mhz. What is the period of this clock? Problem #2: A certain program has an average CPI of 1.78 when run on a 2.0 GHz computer. What would you expect the CPU execution time for this program to be if it contains 1 million instructions? Problem #3: A 3.0 GHz computer executes a program containing 152,000,000 instructions in 230 ms. )What is the computer's average CPt for this program? A second computer with a 2.8 GHz clock executes the same program in the same amount of time. b) What is the computer's average CPI for this program? c) How does the performance of the first computer compare to that of the second