Appletalk

A routable networking protocol that is of no practical use in the real world as we all use TCP/IP.

If you find a sad-o who owns an Apple product who has a little technical knowledge (as opposed to 99.9% of them who are victims of "Form over Function" even they won't be using Appletalk).

It uses CSMA/CA as opposed to CSMA/CD which is used by Ethernet, but aside from that it's a bit poo!

The only time I ever heard of Appletalk is when I was doing the nteworking course