Depends upon the version. There was a version for 8086 before the 286 version. For a 286 operating system I would suggest Minix. It has the same 64k code+64k data process limitations that coherent did. It's nearly open source, and (last time I checked) it's more stable than ELKS. (The embeddable linux kernel subset). Did Xenix support huge model, or was it also 64k+64k? I'd also check out OS/2 1.X, which definitely supported huge model, but was single user. Eric

Yes, I checked it. Coherent run on 286 with the usual 64K code and 64K data limitation, but the best: You can download a full binary distributions and the kernel sources from : ftp.mayn.de/pub/coherent I will now try to get it running on my 286 ... mario

I found the Coherent FAQ online last night and it seems to date from sometime in 1993 but it has a ton of excellent info about it. It states that Version 3.2 would run on a 286 while Version 4.0 required a 386 processor. If I remember correctly, I was running Version 1.0 or 1.1 and this was in 1990 after I had seen a review of it in 'PC Sources'. It was the main IBM-type magazine that I read at the time, though I also liked 'PCM', 'Amiga World' and 'Micro80'. For anyone interested in the FAQ, it can be found at: http://personales.mundivia.es/varel/coherent/ Jeff -- Collector of Classic Microcomputers and Video Game Systems: Home of the TRS-80 Model 2000 FAQ File http://www.geocities.com/siliconvalley/lakes/6757