glass tty

( /glas T·T·Y/, /glas ti´tee/, n.)

   [obs.]  A  terminal  that  has a display screen but which, because of
   hardware  or  software  limitations,  behaves like a teletype or some
   other printing terminal, thereby combining the disadvantages of both:
   like a printing terminal, it can't do fancy display hacks, and like a
   display  terminal,  it  doesn't  produce hard copy. An example is the
   early  `dumb' version of Lear-Siegler ADM 3 (without cursor control).
   See  {tube},  {tty};  compare  {dumb  terminal}.  See  TV Typewriters
   (Appendix A) for an interesting true story about a glass tty.

[glossary]
[Reference(s) to this entry by made by: {dumb terminal}{smart terminal}]