Re: [pups] bitsavers document - TUHS

15 Jun 2006

Martin Lovick remarked,

...
  whilst looking around the bitsavers.org pdf archive,
I
 found a document called
 PreliminaryUnixImplementationDocument_Jun72.pdf.
 Having had a quick scan through, it contains a source
 code listing and some commentary (lions i hear you
 say). The strange thing is that all of the source code
 appears to be in assembler... 
...
  whats this about? 
...
  is it a comentary of PDP-7 unix? 
It is a fairly early version, with commentary, of PDP-11 Unix (the kernel),
indeed still in assembler.  It is an interesting find, probably
the earliest version yet unearthed.  Kossow told me about
it when he did (or got) the scan of the document.

I can't remember receiving it at the time.

It is clearly different from what we in the research
group were running at the time--it has devices we didn't have,
and I think by then we were on the 11/45.

	Dennis