+**Crt** refers to the Cathode Ray Tube, a [vacuum tube](/wiki/Vacuum_Tube) that generates a focused electron beam. This beam excites a [phosphor screen](/wiki/Phosphor_Screen), rendering images for display on devices like older televisions and computer monitors, before the advent of flat-panel technology.
+## See also
+- [Display Device](/wiki/Display_Device)
+- [Monitor](/wiki/Monitor)
+- [Television](/wiki/Television)
... 1 more lines