PCM (PC eMulator) from Gary Beihl (gary.beihl@columbiasc.ncr.com)
(directory maintained by Mark W. Eichin <eichin@athena.mit.edu>)
28 apr 1992 -- pcm-0.5.tar.Z
 6 May 1992 -- pcm-0.5a.tar.Z, including rasm
11 Jun 1992 -- pcm-0.6.tar.Z
14 Jul 1992 -- pcm-0.65.tar.Z