[smarks]

> Yes, there were a few "dumb" terminals that were simply paperless teletypes

Ah yes, the proverbial "glass TTY." There were a few years in the late 1970s where printing terminals (actual Teletypes such as the ASR 33, and matrix printing terminals like the DECwriter) were fading out and "dumb" CRT terminals came in. When I arrived at university in 1980 the computer center was filled with dumb terminals like the ADM-3. There were a few smart terminals (they could run Emacs!) but they were hard to come by.

Within a couple years, though, the dumb terminals were all gone and were replaced by "smart" CRT terminals that had the more sophisticated features. So the lifetime of the glass TTY might have been only 5-10 years.