problem1. Describe four services of the operating systems.

problem2. Make a distinction among the short term, medium term and long term scheduling that are provided by multi-tasking operating systems.

problem3. Why processes at times require to be swapped if programs are run?

problem4. Old computer systems use single bus to connect with many devices. One problem of these systems is propagation delay. How does this lead to delay?

problem5. What is the negative aspect of using multiplexed bus instead of dedicated bus?

problem6. Draw a diagram to represent how the local, system, high-speed and expansion buses connect cards and peripheral devices in computer system.