QUESTION 4 (25 MARKS] (a) As a computer expert of your company, you are asked to compare the performance of two different compilers on 1 GHz machine with four different classes of instructions, namely Class W. Class X, Class Y, and Class Z, which require one, two, three, and four cycles, respectively. Both of these compilers are employed to execute a large piece of software. For that, the first compiler uses 5 billion Class W instructions, 2 billion Class X instructions, 1 billion Class Y instructions, and 2 billion Class Z instructions. The second compiler uses 10 billion Class W instructions, 2 billion Class X instructions, 2 billion Class Y instructions, and 1 billion Class Z instruction. Accordingly, identify which compiler is preferable in terms of the MIPS (Million Instruction Per Second) in details calculation. [8 Marks] 1 Add File (b) Assume a computer architecture with 4 categories of instructions whose names and CPIs (Cycle Per Instructions) as listed in Table 1. A programmer writes a program, which he would like to run on this computer. The number of that are utilized in the program are also