[TUHS] UNIX v4 Source Code Commentary - complete book now available

[Warren Toomey via TUHS]

On Mon, Jan 12, 2026 at 04:37:29PM -0500, Briam Rodriguez via TUHS wrote:
> Following the incredible recovery of the UNIX v4 tape from the University
> of Utah last month, I've written a comprehensive line-by-line commentary
> on the entire UNIX Fourth Edition source code.

> It is my sincerest hope that this book can help someone, and I'd appreciate
> any feedback (and changes!).
> Many thanks to Robert Ricci, and Al Kossow, and everyone involved in
> recovering this historic code.
> Without that work, this book wouldn't have been possible. Also thanks to Mr.
> Warren for letting me in to the mailing list!
> Please don't beat me up too bad!
> Briam Rodriguez

8-) No beating required. I've skimmed the first two dozen pages and so
far it's a good introduction to v4, setting the background in terms
of people, organisations and the PDP-11 architecture.

I'm sure that the TUHS members will give you well-advised and useful
criticism and suggestions.

Thanks for your hard work and effort Briam.

Cheers, just Warren