1. What is the drawback of using the set and clear flag system while allocating devices? 2. A process is said to be I/O-bound if it requires a lot of I/O operations, whereas a process that consists of...

1.
What is the drawback of using the set and clear flag system while allocating devices?

2.
A process is said to be I/O-bound if it requires a lot of I/O operations, whereas a process that consists of mostly computations within the CPU/memory system is said to be computebound. If both a compute-bound process and an I/O-bound process are waiting for a time slice, which should be given priority? Why?

3.
Would greater throughput be achieved by a system running two processes in a multiprogramming environment if both processes were I/O-bound (refer to problem 25) or if one were I/O-bound and the other were compute- bound? Why?