Yes that's one thing that I like about Apple, is that it is run on Unix, though it's been modified quite a bit. I'd like it better if apple used completely open source unix, but it's understandable why they want to keep their version to themselves.
Because Unix and Linux are so similar, many things that can run on Linux can run on Unix, and vise versa. "Cups" is a open source printer driver that is maintained by Apple, and also used by Linux.
Wayne Sallee
Wayne@WayneSallee.com
Wayne Sallee . Com