[jtotheh]

https://web.archive.org/web/20160503170006/http://www.paters... this may be a later-in-life snapshot of Tim Paterson's work as of 2016 which is very impressive. He has/had a blog you can see here: https://web.archive.org/web/20180711012545/http://dosmandriv... (entry is from 2011). I would put a lot of credence into his account of the days of 86-DOS, the IBM PC and so on.