Xinu

Dennis Brylow's Xinu Lab Infrastructure Page
Keeps the Xinu Millenium Edition: first port to a modern RISC architecture: PowerPC G3 and G4. Marquette University Department of Mathematics, Statistics and Computer Science.
http://www.mscs.mu.edu/~brylow/xinu/

Douglas Comer
Xinu creator, Distinguished Professor of Computer Science, Purdue University; information, essays, affiliations.
http://www.cs.purdue.edu/people/dec/

PDP-11 Xinu
Directory with Xinu OS for LSI-11 PDP-11 series of 16-bit computers; distribution has SunCHIP (a.k.a. CHIP) C compiler and assembler, both written in C. Unix archive. The Unix Heritage Society, Unix Archive.
ftp://minnie.tuhs.org/UnixArchive/PDP-11/Distributions/other/Xinu/

Xinu
Growing article, with links to many related topics. Wikipedia.
http://en.wikipedia.org/wiki/Xinu

Xinu Version 7.0 on the Sun
Large page, many details of using Xinu on Sun 2 and 3 with 68k CPUs.
http://www.ugrad.cs.ubc.ca/spider/xinu/xinu.sun3/xref/Xinu-7.0.html