Best TUHS mail ever. I never knew that setuid was for moo. What other
secrets are you hoarding?

-rob


On Wed, Feb 1, 2023 at 3:51 PM Douglas McIlroy <
douglas.mcilroy@dartmouth.edu> wrote:

> Moo (later marketed as Master Mind) was an import from Cambridge. A
> moo leader board sprang up. Maintenance of a file that had to be
> written on behalf of any user posed a conundrum--how could you protect
> it against false updates? Dennis's novel solution to this and related
> problems was setuid, which garnered the only Unix patent.
>
> Wumpus was my preschool kids' introduction to computing. They learned
> the tricks of shooting crooked arrows faster than I learned that the
> cave is always the same, with random room numbers. Only years later
> did I discover by reading the code that the shape is a dodecahedron.
> That fact would have helped note-taking a lot.
>
> Doug
>
>