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This is a bit complicated because NeXTstep didn't use a BSD kernel, using the Mach microkernel instead. Much of the layers above were taken from BSD, so it defi

by jdswain 10y ago

This is a bit complicated because NeXTstep didn't use a BSD kernel, using the Mach microkernel instead. Much of the layers above were taken from BSD, so it definitely had a BSD feel to it, but it wasn't a BSD kernel so maybe couldn't really be called a BSD derived OS?

sverige 10y ago
If you go down that road, Linux and derivatives will drop off the table too.
GalacticDomin8r 10y ago
https://lists.freebsd.org/pipermail/freebsd-advocacy/2008-August/003674.html https://lists.freebsd.org/pipermail/freebsd-advocacy/2008-Au...
valleyer 10y ago
Mach did not separate BSD into userland (like a true "microkernel") until 3.0. NeXTSTEP did not use Mach 3.0. Mac OS X still has the BSD code in the kernel.