Yeah!
Yes, CTOS was a potent little operating system. That O/S was the one used to run Unisys DP500 et. al. document processnig systems in real time. Easy to use, tons of useful features, and yes, the context manager was good too. Unfortunately, Unisys made it proprietary, and that killed it.
Also, those little boxes would talk with all kinds of networking systems, including banking systems. And the older ones were composed of "slices", say a tape drive slice, a hard disk slice, and you pushed the slices together and then locked them down with handles, and as the system booted, it detected the new devices and configured accordingly and automatically. Those models composed of the slices were the B38's and B39's if I remember correctly.
And Yes, Very Nice Keyboards.
