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| | Mac OS X - Wikipedia, the free encyclopedia |
 | | Apple's implementation is based on XFree86 4.3 and X11R6.6, with a window manager which mimics the Mac OS X look, closer integration with Mac OS X, and extensions to use the native Quartz rendering system and to accelerate OpenGL. |
 | | Since version 10.3, Mac OS X has included X11.app, the company's version of the X11 graphical interface for Unix applications, as an optional component during installation. |
 | | Mac OS X is based on the Mach kernel and the BSD implementation of Unix, which were incorporated into NEXTSTEP, the object-oriented operating system developed by Steve Jobs's NeXT company after he was forced from Apple in 1985. |
| en.wikipedia.org /wiki/Mac_os_x (3454 words) |
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