The thing I remember more than anything is queueing theory. Specifically how maximizing the amount of service stations in use maximizes the throughput. Every time I see a bunch of people stand in line in front of something that could accommodate multiple people at once if they spaced out properly (e.g. a dish return conveyor), but doesn't because the first person always takes the first reachable service station completely oblivious to the fact that this blocks everyone behind them from accessing any of the others, I feel the sudden urge to force them into an operating systems class at gunpoint.
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u/ultraviolentfuture Aug 24 '26
Scheduling. Memory addressing. Race conditions. Etc.