a$)$ Give the queuing diagram representing process scheduling and show the action point for the different types of CPU schedulers. $(10$ Marks$)$

b$)$ Using Amdahl's Law, calculate the speedup gain of an application that has $80$ percent parallel component for: $($i$)$ two processing cores and $($ii$)$ eight processing cores. $(10$ Marks$)$

c$)$ Including the initial parent process, how many processes are created by the program shown in the following code given in figure $1?$ and what will be the possible output of the program? $(10$ Marks$)$