Midterm 1: Lecture 1-5

• OS Challenges
• Process abstraction
• System calls
• Context Switch
• Kernel abstraction
• Protection
• Dual-mode operation
• Process’s Double Life
• System call implementation
• Unix process management
• Interrupts
• Concurrency
• Thread abstraction
• Thread operations
• Implementing threads
• Cooperative and non-cooperative multithreading
• Processes vs. threads
• Synchronization