Linked by Thom Holwerda on Tue 6th Nov 2007 21:38 UTC, submitted by SK8T
BSD and Darwin derivatives Apple has released the source code to Darwin 9, the underlying open source operating system ofMac OS X 10.5 Leopard. "Darwin is the open source UNIX-based foundation of Mac OS X. Darwin integrates a number of technologies, including the Mach 3.0 microkernel, operating system services based on FreeBSD 5 UNIX, high-performance TCP/IP networking, and support for multiple integrated file systems. Because the design of Darwin is highly modular, you can dynamically add device drivers, networking extensions, and new file systems."
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An interesting statistic...
by baadger on Tue 6th Nov 2007 22:54 UTC
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Here's an interesting statistic, the /bsd folder of the XNU kernel tar ball accounts for 49.2% of the untarred size on disk.

I'm actually surprised that so much of the source is C++...

Edited 2007-11-06 22:57

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