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What is the difference between UNIX and MAC OS X?

Q. My question is pretty simple - What is the difference between UNIX and MAC OS X?

A Mac OS X is an operating system with a graphical user interface, developed by Apple computer for Macintosh computers, based on UNIX.

Darwin is a free and open source, Unix-like operating system first released by Apple Inc. in 2000. It is a standalone operating system as well as the core set of components upon which Mac OS X was developed. It is primarily developed by Apple to support Mac OS X.

There are few differences:
a) File system – Mac OS X prefer to use HFS+ file system with slightly modified directory location.

b) X11 vs Aqua - Most UNIX system use X11 for graphics. Mac OS X uses Aqua for grpahics.

Further readings:

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{ 6 comments… add one }

  • wormcan August 27, 2009, 11:56 am

    Thanks for sharing this infp.

  • tom November 20, 2009, 5:35 am

    What’s HFS and AQUA?Thanks

  • ramanjulu June 18, 2010, 9:18 am

    the above questiuons are very nice

  • ramu June 18, 2010, 9:19 am

    the answers are very nice

  • GammaRayToaser July 15, 2011, 5:47 am

    “b) X11 vs Aqua – Most UNIX system use X11 for graphics. Mac OS X uses Aqua for grpahics.”

    this is wrong btw, OS X is still using X11 as Aqua is the GUI and primary visual theme of Mac OS X. Aqua runs on X11.

    • Tryme July 15, 2011, 8:26 am

      Do you’ve any document to backup your source? The wiki article at the wikipedia says Aqua was developed by Apple in 2000. However, you can install X11 server and client on Apple OS X to run Gnome or kde apps such as Gimp.

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