[_carbyau_]

To extend 2. facilities, my experience had a - somewhat older and smaller - supercomputer that we got to run some stuff on.

And I'd argue for:

3. Realisation of the scope of computing.

IE Computers are not just phones/laptop/desktop/server with networking - all hail the wonders of the web... There are embedded devices, robots, supercomputers. (Recent articles on HN describe the computing power in a disposable vape!)

There are issues at all levels with all of these with algorithms, design, fabrication, security, energy, societal influence, etc etc - what tradeoffs to make where. (Why is there computing power in a disposable vape?!?)

I went in thinking I knew 20% and I would learn the other 80% of IT. I came out knowing 5 times as much but realising I knew a much smaller percentage of IT... It was both enabling and humbling.