[TUHS] UNIX on Tandem

[Paul McJones via TUHS]

> Tandem’s architecture was an interesting one, but I had 
> not heard of a UNIX port to it.   Had it’s own, unlike anything else, OS 
> called TOS or something.

The operating system was called GUARDIAN. The manuals are available here:

https://bitsavers.org/pdf/tandem/

And this is an SOSP’81 paper about the design of the operating system:

https://doi.org/10.1145/800216.806587