[Pekka] set himself up with quite the challenge – use an oscilloscope screen to display Quake in realtime – could it even be done? Old analog scope screens are just monochromatic CRTs but ...

I always have! I don’t know why, but I like the idea of using an oscilloscope screen as a general use video display. Why not? In my case it sits on my desk full time, has a large screen area ...

An oscilloscope gives the following display for the electricity from a battery. Figure caption, Oscilloscope trace showing battery voltage: a straight horizontal line at the top of the screen.