A series of twitter posts on a modular computer by Iskra Delta that sounds fantastic but was a victim of the Cold War. From the post:
In 1985, a company from socialist Yugoslavia called Iskra Delta produced a modular computer that could be configured with Intel 80286, DEC J11, and Motorola 68010 CPUs, and could run several OSes. The article from “Moj Mikro” (“My Micro”) mentions CP/M, UNIX, XENIX, RT-11 and DOS