OS class. Nobody seems to care about OS fundamentals anymore, and whatever software you end up working with you most likely interacting with some form of an OS.

OS class. Nobody seems to care about OS fundamentals anymore, and whatever software you end up working with you most likely interacting with some form of an OS. Compiler class: Same as above, but it also gave me that 'fearless' mindset when working with new problems/codebases. Probability/stochastic processes. This is definitely the most useful one. Stochastics is just everywhere, and addressing risk is something we all do all the time. differential equations / scientific computing class. I think DE are an under-appreciated gem, and almost everything is modelled with differential equations. It's literally how we describe the world. HPC: Made me throw many of my texts from adv. algorithm classes into the dumpster. Just measuring actual code performance made me realise that std::vector / linear structures is very hard to beat, and most of time its about knowing your problem and hardware and not about being fancy. Computer-Graphics/Rendering: This class actually taught mere more about programming and algorithms than those two classes combined. Computer-Graphics is one of those rare subjects where you need all the tricks.