Intro/motivation

• What's the design component in recent OS work? Does design==representation (as opposed to design==artifact)?
• What's the difference from distributed systems? (What's a system? Maybe a well-defined programming/abstraction boundary?)

Possible areas

• Internet services
• Internet simulator
• Huge filesystem
• Air traffic ctrl simulation
• Big supercomputer programs vs. decoupled/distributed programs
• Organization (hierarchical?)