The original Crays were delivered with no software -- not even an OS. We had to roll our own OS.
I started at Sandia Labs in 82 as a fresh PhD. I still had some work to do on my software-based dissertation, so I got to play on the "new" Cray. I had been used to waiting a *long* time for my (FORTRAN) program to compile on UCLA's IBM 360... The first time I compiled on the Cray, it finished so quickly I thought I had a syntax error in my job submission command. For the times, that machine was FAST!