The number of people who come here asking for help, who apparently don't know how to do a Web search, is pretty astounding. Get off my lawn. Actually, I didn't write that; another CHWiki contributor imported it from the Web. (Wouldn't touch SIMH myself... :-) Most of the other pages at the bottom, in the 'See also' section, I did write. Some of them might actually be useful. Also, at the bottom of the 'Installing UNIX Sixth Edition on Ersatz-11' page, there are links to a couple of external pages that have lots of info on how to upgrade a V6 into something semi-usable. Noel