Comment by a1o

If you want some cool unusual UI, check out the HP Logic Analyzers (like the 16500A but there were others). It had a touch interface even though it had a CRT, and it had a knob for scrolling and for some alternative uses too - I think it used an encoder instead of a potentiometer but I may be misremembering. It was a really cool interface, I used it in early 2000s but it was old already by then, but it was really cool. There is a small website that documents its UI but I forgot the url.