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--- systems:3rd_edition [2015/12/29 17:04] – created admin
+++ systems:3rd_edition [2023/05/20 16:55] – note dubious identity of V2 components segaloco
@@ Line 3: / Line 3: @@
 **Release Date:** February 1973\\
 **Released By:** Bell Labs Research\\
-**Source Code: ** some source code is in the [[http://www.tuhs.org/Archive/PDP-11/Distributions/research/Dennis_v3/|Unix Archive]], browsable in the [[http://minnie.tuhs.org/cgi-bin/utree.pl?file=V3|Unix Tree]]\\
+**Source Code: ** some source code is in the [[http://www.tuhs.org/Archive/PDP-11/Distributions/research/Dennis_v3/|Unix Archive]], browsable in the [[http://www.tuhs.org/cgi-bin/utree.pl?file=V3|Unix Tree]]\\
 **Documentation: ** [[http://www.tuhs.org/Archive/PDP-11/Distributions/research/Dennis_v3/v3man.tar.gz|3rd Edition man pages]]
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 "prestruct-c" is a copy of the compiler just before I started changing it to use structures itself. ... [It] implements structures in a way that begins to approach their current meaning. Their declaration syntax seems to use () instead of {}, but . and -> for specifying members of a structure itself and members of a pointed-to structure are both there.
+The files currently listed as Second Edition under cmd and lib in the UNIX tree, [[https://www.tuhs.org/cgi-bin/utree.pl?file=V2|V2 Sources]], may represent code closer in character to the Third Edition, given the lack of Extended Arithmetic Element usage.
 For more information about Third Edition Unix, see [[http://cm.bell-labs.com/cm/cs/who/dmr/hist.html|The Evolution of the Unix Time-sharing System]] by Dennis Ritchie.