A vacuum tube in which a hot cathode emits a beam of electrons that pass through a high voltage anode and are focused or deflected before hitting a phosphorescent screen
This light signal is converted to electrons which are subsequently amplified before being used to modulate the intensity of a cathode ray tube display.
The PPI image from a high intensity cathode ray tube was projected on to the film through a focusing lens.
It's true - your favorite game developers want you to develop an unhealthy pallor from sitting in front of a cathode ray tube all the time.