The characters are not actually stored as rasters though. There are up,down,left,right,intensify and end signals that control the beam and the logic and no more

The characters are not actually stored as rasters though. There are up,down,left,right,intensify and end signals that control the beam and the logic and no more than 30 pulses per character. In fact, I took photos of the "ROM" earlier this year: https://imgur.com/a/QnFFkg6 https://imgur.com/a/QnFFkg6