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System Software
- overlap with networking
  message authenticity, privacy, integrity
  network security: common attacks
  - replay
  - man in the middle
  - passive snooping
- overlap with programming langauges
  memory management (including shared memory, shared memory protection)
  concurrency (deadlock vs starvation / busy wait vs blocking / context switch)
  schedulers (preemptive vs non-preemptive / priority inversion)
- overlap with databases
  idempotent operations (allow retry)
- virtual memory
  segmentation
  paging
  - lru replacement strategy approximations
  - multi-level
- operlap with architecture
  I/O (memory mapped vs programmed / polling vs interupts)
  system calls vs user calls
- RAID
  error detection and error correction (hamming codes)
  MTTF math
- file systems
  buffer cache
  journaling
  network file systems
- dynamic linking vs static linking
- to review
  VM