[Operating Systems questions]

1) Compare and contrast the event-driven and algorithmic paradigms. 2) In microkernal-based client-server systems, the microkernal just message passing and nothing else. Is it possible for user processes to nevertheless create and use semaphores? If so, how? If not, why not?

3) Why is it hard to design an operating system?

4) List the guiding principles for operating system interface design. Write a brief statement on why each principle is important to the operating system interface design.

5) Define "architectural coherence"

6) Explain how the choice of 'top-down' or 'bottom-up' structures impacts the operating system design.

7) Explain how the choice of 'synchronous' or 'asynchronous' structures impacts the operating system design.

8) What is the ability to combine separate concepts independently?

9) Explain how the choice of 'static' or 'dynamic' structures impacts the operating system deisgn.

10) List and briefly describe three 'useful' concrete techniques for imlementing an operating system.