Warning: this may be historic (1970's, PDP-11, etc.) or might be fictional. Don't loose sleep over this (although you might could get some additional insight around 9pm EST;-) And please don't flame me either.
Minicomputer, comparable phyiscal size to PDP-11
appears to be two CPU units 3-5 feet height, but one may be open reel tape
punch cards use unknown (not seen)
appears to be controlled by terminal (no external drives noticable)
time referenced predates MS-DOS ("late 1970s")
system appears to have been continuously running since that time (maintenance, degradation, upgrades, and canabilization uknown)
reference to a university in Michigan (refers to persons, not where system was developed or used)
system command prompt is ">:"
system accepts numeric 1 and 2 digit commands
commands are separated by a space on single line
other commands and syntax presently unknown; keyboard appears to have standard english alphabet, function keys unknown at this time
system apparently used for SCADA type of functional control(s) or monitoring
physical environment- cooling, dehumidification appears to be intact, but likely higher than optimal temperature and humidity; increased magnetic fields in area (assumed to be at least partially natural); radioactivity unknown but suspected.
If non-fictional, any idea on type, function, design, and capabilities? Ideas on the numeric commands?