All, I've just received from Poul-Henning Kamp a document entitled "UNIX Program Description", dated January 1976 and written by the UNIX Support Group. It contains detailed descriptions of the functions inside a Unix kernel. Given the date and the USG origin, I'm guessing that the system described is PWB/1.0. Can anybody confirm this at all? The URL is http://minnie.tuhs.org/Archive/PDP-11/Distributions/usdl/unix_program_descr… but I'll move it if it turns out not to be about PWB. I love how new documents and artifacts keep appearing! Thanks phk. Cheers, Warren _______________________________________________ TUHS mailing list TUHS(a)minnie.tuhs.org https://minnie.tuhs.org/mailman/listinfo/tuhs