10.1. Homework - Introduction Questions

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1. Distinguish between the client–server and peer-to-peer models of distributed systems.

2. What is the purpose of interrupts? What is the difference between a hardware, software interrupt and a trap?

3. Some older computer systems did not provide a privileged (supervisory) mode of operation in hardware. Is it possible to construct a secure operating system? Explain how it might be accomplished. What are the potential threats?

4. What is the purpose of system calls?