(3) (6 points) Please illustrate the advantages of the multiprocessor systems (4 points). What is the possible reason for the problem that, compared to a computer with a single processor, the speed-up ratio of a computer with eight identical processors is less than eight ( 2 points) (4) (6 points) Please summarize the function of the process scheduler in brief ( 2 points). A common representation of process scheduling is a queueing diagram, including two different types of scheduling queues of processes. Please describe the state of the processes placed in these two types of queues, respectively (4 points)