@nina_kali_nina And here's 1B/V3. Despite looking similar, 1B and B-right/V are actually distinct OSes, although AFAIK at least some code was carried over from 1B to B-right (mostly in the GUI and applications). Despite being released in 1996, 1B/V3 is still a 16-bit 286 protected mode OS (the first versions came out in the late 80s). The demo version fits on 2 floppies but still has quite a bit of functionality
@andreww oh, do you have the demo somewhere? I would love to try it out on my 286!