Atari Transputer Workstation
I did post grad research in the mid '90s on an Atari Transputer Workstation. Initial boot was Atari OS on Motorola 68000, which then handed over to a single T800 master running Helios with X-Windows
Had 3 'farmcards' each with 4 T800s for a total of 12 workers. Was writing image processing routines to take advantage of the parallel processing. The T800's were quite fast at actual processing when compared to the single CPU machines we had (SPARC 2 and Intel 386), but was let down by slow io between the processors.
It came with an 80MB hard drive (that is not a typo - eighty megabytes). I think we paid about £1000 to upgrade the disk to a whopping 100MB