Is Mac OS X based on Unix?

Somebody told me that the Mac OSX is developed based on UNIX. I have been working with Mac for many years but this is the first time I heard that OSX is based on UNIX platform or is designed on UNIX coding or something like that. Could someone give me a detailed answer?

Is Mac OS X based on Unix?
Yes. And not just "based on". It IS a unix flavour, called "Free BSD".


To one of the answerers above - all the mordern unix systems (OS/X included) have GUI, but it is not a part of OS.
Reply:Mac OS X ISN'T FreeBSD. FreeBSD is another OS altogether. While OS X has some FreeBSD code, it is certainly different. The kernels are completely different, as OS X uses a Mach-based kernel (XNU). OS X design-wise and code-wise overall is most similar to its direct predecessor, the NEXTSTEP OS. Report It

Reply:Sort of.





The underlying system is based on FreeBSD which was a re-write of


BSD with open source software. BSD was an evolution of the UNIX


from the 70s.





Note, however, that NONE of the code from the original UNIX exists


in FreeBSD because software developers developed their own versions.


Most of the new stuff is provided under the GNU license (open source).





Linux also uses a great deal of software developed under the GNU


license, but the kernel is different.
Reply:why yes it is this site has som mac links http://bartman1.blogspot.com/ hope it helps
Reply:yeah. the only defference is UNIX is CBI ( command based interface ) %26amp; MAC OS X is GUI ( graphic user interface )
Reply:OSX is based upon a Unix core..yes this is indeed the case. Bill Gates is also the devil, BTW. Keep using Mac, Linux, anything but microsoft

garden furniture