Compare the FAH systems to BlueGene/P. BlueGene is made up of System-on-Chip PowerPC computers, stuck on DIMM-like cards and then put into arrays, which go into racks, etc. Hugely power efficient, in part because each system doesn't maintain a disk and other crap.
On the other hand, your home computer is inefficient in terms of both heat, power, and space, because it has to run all the other hardware stuff you don't have in a proper supercomputer.
Real computer science students (and the computer engineering students who end up taking the classes too) are smart enough to pick up Unix as they work through the CS courses. It's a good idea to have one or two class sessions to talk about Unix, but having actual Unix courses seems rather silly.
So yeah, if they're teaching a full course on just using Unix, it's probably IT.
HERF gun.
I tell them to turn to the study of mathematics, for it is only there that they might escape the lusts of the flesh. -- Thomas Mann, "The Magic Mountain"