L01a: Principle Of Abstraction
L01d: Managing The CPU And Memory
L02d: The L3 Microkernel Approach
L03c: CPU & Device Virtualization
L04f: Shared Memory Multiprocessor OS
L07b: Distributed Shared Memory
L07c: Distributed File Systems
L08a: Lightweight Recoverable Virtual Memory
L09c: Content Delivery Networks