I think arcade games worked like that. Looked it up and oscilloscopes do, too: https://en.m.wikipedia.org/wiki/Vector_monitor https://en.m.wikipedia.org/wiki/V

I think arcade games worked like that. Looked it up and oscilloscopes do, too: https://en.m.wikipedia.org/wiki/Vector_monitor https://en.m.wikipedia.org/wiki/Vector_monitor