I have Googled around and found a few references to this term, but nothing which defines what it actually means. Does anyone here have experience with such a device? What features must a processor have to be considered a 'Unix Processor'?
Since some people have taken issues with whether this is a real term, here are some snippets taken from Google scholar which include it:
The Sparc64 X design concept is to combine Fujitsu's Unix and high-performance computing (HPC) processor features to realize an extremely high-throughput Unix processor
Using one UNIX processor, it takes more than 400 hours to complete the imageodesy processing from one pair of cross-event ETM+ images.
The MmCP will be part of a multimedia workstation's architecture, sharing memory with the main UNIX processor.
Four additional megabytes of memory are dedicated to the UNIX processor, but the remaining four megabytes are shared between the UNIX processor and the CCD readout processor.
Unfortunately I don't have access to all of these papers, so I can't study them in more detail. But it would be nice if someone who has came across the term before would take the time to answer.