Whether your screen is a domestic TV or a dedicated monitor, the heat and voltage stress of driving a CRT made these devices significantly less reliable than many of their modern-day counterparts.

Here’s a bulky old CRT monitor used as a touch-screen without any alterations. It doesn’t use an overlay, but instead detects position using phototransistors in the fingertips of a glove.

hooking up a CRT monitor to a modern PC is quite a process that is not for the faint of heart. There are two paths you can go ...

entitled "Optical Time-Domain Eavesdropping Risks of CRT Displays." That paper points out ways to read computer data on the sly, but via indirect monitor light reflected off a surface rather than ...