need help with all questions

1.1 [2] List and describe three types of computers. 1.3 [2] Describe the steps that transform a program written in a high level language such as C into a representation that is directly executed by a computer processor. 1.7 [20] Consider two different implementations of the same instruction set architecture. The instructions can be divided into four classes according to their CPI (class A, B, C, and D). P1 with a clock rate of 2.5GHz and CPIs of 1, 2, 3, and 3 , and P2 with a clock rate of 3GHz and CPIs of 2,2,2, and 2 . Given a program with a dynamic instruction count of 1.0E6 instructions divided into classes as follows: 10% class A, 20% class B, 50% class C, and 20% class D, which is faster: P1 or P2? a. What is the global CPI for each implementation? b. Find the clock cycles required in both cases