From mboxrd@z Thu Jan 1 00:00:00 1970 From: aek@bitsavers.org (Al Kossow) Date: Mon, 24 Apr 2006 12:40:24 -0700 Subject: [TUHS] "Preliminary Relase of UNIX Implentation Document" Message-ID: http://www.bitsavers.org/pdf/bellLabs/unix/ here is a note from Dennis about the history of the documents that I've just put up on bitsavers -- The manual is the 1st edition, a scan of which has been available at http://cm.bell-labs.com/cm/cs/who/dmr/1stEdman.html in various forms (all renditions of the same scan) for a while. However, the annotated OS and software scan is new to me This is a medium-age version of the assembler system for the PDP 11/20, and is apparently without an MMU. A good find! There were subsequent assembler versions for the (DEC Special Systems) 11/20 with an MMU and then for a while for the 11/45; the first C version would appear late summer of 1973. Regards and thanks, Dennis