БК family is missing, the bestselling Soviet computers. CISC architecture. https://ru.m.wikipedia.org/wiki/БК_(семейство_компьютеров). I wrote my first programmes on that Bulgarian made ISKRA 1030, that was nice but very poor performing comparing to ЕС mainframe with PRIMUS OS.
Also ЕС desktops family is missing in this article. The latter sibling of that had a cast iron mouse, I kid you not.