Ah, RSTS. RSTS was an
OS (of sorts) for the
DEC PDP/
VAX series of
minicomputers. The name is an
acronym meaning
Resource Sharing/Time Sharing. It was best used on VT100 or VT52 terminals connected by serial muxes to the host computer, although it drove many a
DECWriter in its time. Rights for
RSTS are presently held by a company named Mentec, Inc. which allows its distribution to
PDP-11 enthusiasts for use on the machines themselves or on modern
emulators which run on Windows, Linux, etc.