1. Discuss what considerations the computer operator took into account in deciding on the sequences in which programs would be run on early computer systems that were manually operated.

2. What conclusions can be drawn about the evolution of operating systems? What causes some operating systems to gain in popularity and others to fade?

3. What are the implications of supporting BSD functionality in user-mode servers within the Mach operating system?

4. What optimizations were used to minimize the discrepancy between CPU and I/O speeds on early computer systems?

5. Consider the page-replacement algorithm used by Atlas. In what waysis it different from the clock algorithm?