Other than RMS, another RT OS produced by DEC as well. This actually sold more licenses since it was used in a lot of embedded applications. The scanner system I worked on in the late '80s used this with one of the first compact MicroVax II's that they produced. I actually had one of these here up to about 2 years ago, and it worked fine with one of the largest ESDI drives ever made (a 700M unit! Blimey, that was stretching the technology in 1984) until it scratched the boot track. At which point it became known as "The Doorstop" as I used it to hold open the door to the computer room in the summer. I would occasionally connect up a serial terminal and watch it plaintively call to the disk for the boot loader, whispering sweet nothings to a dead lover as if it was still there. The Dutch Computer Museum took it away when I couldn't stand it any longer, along with several boxes of S-100 bus cards (including a very rare Sytek 64K memory card, yes you read it right a 64 KILOBYTE card) and an SMPTE Computers dual processor unit. I sobbed all night: but the best thing is, my babies have been brought back to life and are running quite happily at the museum keeping in-the-know tourists in laughs most summer days.

Hang on, where did this story start off, anyway? Did I tellyou the one about the first SMP processor rack we tried on a TORUS NMR scanner back in '88? Boy, you had to make sure you put your keys in the locker before you worked on that one, or you risked decapitation (or worse, depending on which end of the magnet you were working on )