In July of 1983 Tandy announced the "Tandy Videotex and Office
Information System" that ran under Xenix. It was an early attempt at a
hypertext system. It used dialup lines and was hosted on Tandy Model 16b
(and later 6000) computers.
An 8 port and 16 port multiplexor (that's how they spelled it) were
announced. I don't know if either ever shipped.
There is some information available in the July 25, 1983 issue of
InfoWorld. There is also an article in "TRS-80 Microcomputer News" V5,I
11 (#54 ).
I used to run one of these for a local company (that I still work for).
Does anyone have the manuals or software from one of these systems? I
still have the hardware (not the mux, just the 16b and hard drive).
Kelly