Convergent Technologies

I just acquired 3 convergent technologies computers. They are a series of modules that plug together, each module is the size of a very thick book. They have external power supplies with a 2 foot long cable with snap connectors to connect power supply to module. The modules plus together along the side and a latch locks the connection. No tools needed to add/remove memory. The computers power up and LED's come on. The information I got from the web doesn't say what kind of CPU chip was used, what the computers were designed for and if they are still supported. From several web searches I think these machines ran CTOS which was dropped by Unisys. The date on the inside of the cases is 1983 and 1984. Module 1 CPU with 3 extra memory modules, one labeled datapoint, one convergent tech, one burroughs Module 2 Hard disk 10MB ST225 Module 3 5 1/4 floppy drive Module 1 CPU Module 2 hard disk 90MB Module 3 5 1/4 floppy Module 4 40-60 MB tape drive I picked up 8 power supplies, and 10-20 cables, no manuals. One cable has two right angle db9 connectors that seem to be made to connect "cluster controller" connector in the side of the CPU. Other looks like terminal cable. Does anyone know what kind of terminal would work? Any other information would be appreciated. Thanks Mike McFadden