+The **Cathode Ray Tube** (CRT) is a [vacuum tube](/wiki/vacuum_tube) that creates an image by directing a focused [electron beam](/wiki/electron_beam) onto a phosphorescent screen. This once-ubiquitous technology brought moving pictures and digital interfaces to life, serving as the core of televisions and computer monitors for decades.
+## See also
+- [Television](/wiki/television)
+- [Monitor](/wiki/monitor)
+- [Oscilloscope](/wiki/oscilloscope)