The cathode-ray tube: a vacuum tube that paints images by firing electrons at a phosphor screen. It was the display of televisions, oscilloscopes and computers until the 2000s.
CRT’s are increasingly hard to find and prohibitively expensive.
Travess Smalley, Travess Smalley Profiles Mark Wilson
And importantly, we also have it inside on a 4:3 CRT monitor that we selected in order for it to look as close to a computer monitor from the mid-1980s as possible.
Val Ravaglia, Val Ravaglia on Displaying Digital Art at Tate