Thoughtful, detailed coverage of the Mac, iPhone, and iPad, plus the best-selling Take Control ebooks.

Quiz Preview: I Nix, We Nix, Unix

Quiz Preview: I Nix, We Nix, Unix -- Much is being made of Mac OS X's Unix underpinnings. But is Unix really all that new a thing for Apple? This week's quiz tests your knowledge of Apple's dalliance with Unix - just how many Unix-derived operating systems has Apple released over the years? Test your knowledge today on our home page! [ACE]

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