4 ms·
The 68K had no MMU or even segment registers, so the 68K machines that can run UNIX had, at the very least, some kind of external memory offset adder. I did no
by jhallenworld 6y ago
The 68K had no MMU or even segment registers, so the 68K machines that can run UNIX had, at the very least, some kind of external memory offset adder. I did not know the Apple Lisa had this- it's interesting because Macs didn't have it and could not run UNIX.
- rsecora 6y agoThe Motorola 68020 has a MMU coprocessor, and the 68030, 68040 have an on-chip MMU. The Macintosh II, SE/30, Quadra, and Centris series were able to run A/UX [1] since 1988. A/UX was a SystemV with X and Finder. [1] https://en.wikipedia.org/wiki/A/UX https://en.wikipedia.org/wiki/A/UX