I worked with them at college. My first Internet exposure was on
   my Tandy 1000 TL in 1989, via BBS' and PC-Link, in full 16 color
   graphics. Then 1990 I was at the VT320 terminals.* There were
   both green and amber ones.* The amber might have been a Hercules
   mono emulation on a PC - I don't remember. I even got an ancient
   VT220 at a garage sale once.* TINY LITTLE THING it was. So,
   sorta yes :)* I also had a Hercules card in an old AT I cobbled
   together once in the early 1990s, along with a VGA card.* Two
   monitors at once: I was in heaven :)