A *long* time ago, when it became obvious that the EISA bus was a big lose, we decided to move to PCI. At that time we already had a port of our software to run on an Alpha platform (in our simulator),
As long as we're in the "potentially interesting trivia" category:
"Simulator" here refers to the fact that we can build our software to run inside a UNIX process on SunOS 4.1[.x]/SPARC, SunOS 5.x/SPARC, Digital UNIX/Alpha, Linux/x86 PC, and BSD/OS/x86 PC, using files as simulated disks and tapes and NVRAM, the OS's "get at the raw Ethernet in promiscuous mode" mechanism as a simulated Ethernet (it sets the filter to get packets sent to the Ethernet broadcast address or to the Ethernet address the simulator has been configured to use), and the tty on which you're running it as the console.
It's a slow and really small server, but it's quite useful for debugging and testing.
Much of the 64-bitification (the Alpha filers run with 64-bit "long"s and pointers) and low-level platform-independent Alpha support was originally done in the simulator.