Bull/Convergent part ids

I picked up some unknown (to me) parts today for next to nothing. I would like to know what they are and if anyone wants these I can send them for the price of shipping. 2 externally identical modules, black plastic cases with 50 pin double row sockect connector. One is marked "Bull SA, type CMM1123 XVA M 7C 22940" the other "Convergent XM-003 AB for use with Ngen computers" and a sticker "1MB" I think these are 1Mb memory modules for Ngen computer? Then I have three apparently identical units. Metal boxes 10" x 3.5" x 1". There is a 120 pin connector of two rows of 60 pins. At one end is a 16 position thumbwheel switch, on one edge there are 8 LEDs in two block of 4 numbered 1-8. They all have Bull SA stickers with "Type CPF 1102" and "XVA K 22 06606" printed on them. Regards, Hans B Pufal