My first Unix was BSD/386 (as a product of the University of California) but my first job out of college was HP-UX on a K250. Later on they got an L-class. I still miss the PA-RISC.

There's a 9000/350 here running 8.x, a couple Galaxy 1100 systems running 10.10, a 425t with a PA-RISC upgrade that needs something to do, an RDI PrecisionBook 160 (B160L) running 11 and a C8000 also with 11. And a beat-up K260 I/O card on the wall as a memento. :)