I did much of the port of V7 UNIX for the Fortune Systems 32:16 computer in 1981. It was a 6 MHz 68000 (not 68010!) designed specifically to run the UNIX operating system with business applications on top of it. It could run with 256KB of memory and two floppies (although it was really a lot more useful with a 5MB hard drive). That was the sole operating system intended for it. The 68000 did not have proper instruction restart after taking a trap, so we had to do some tricks to support traps due to stack growth. It had a real (and simple) MMU that supported text, data/bss, stack, and u_page, all built using MSI TTL and maybe a PAL -- no LSI MMU. The box was still rock solid when I last had it powered on, probably about 10 years ago. Mine is maxed out with 1MB of memory and four 68MB disk drives (if I am recalling the max supported disk size correctly). James Markevitch