Well there's the "steer a beam across a screen" as used in CRT's (eg. older oscilloscopes) and the Vectrex game console. Maybe one could consider lasershows fa

Well there's the "steer a beam across a screen" as used in CRT's (eg. older oscilloscopes) and the Vectrex game console. Maybe one could consider lasershows falling in this category too? See "vector display"