Open source stars for Mac OS X: Part 1

“It’s a relatively easy task for open source developers writing
for Linux to port their applications to OS X or even to write new
open source applications just for OS X. Apple’s Mac OS X is based
on the Mach kernel with a BSD wrapper, using specific parts from
FreeBSD’s and NetBSD’s implementation of Unix that were later
incorporated into Nextstep. It uses GCC as a compiler and the
Common Unix Printing System (CUPS), a standards-based, open source
printing system that was developed by Apple. Mac OS X uses its own
native graphics system, but also supports the X Windows System
graphical interface. (Both CUPS and the X Windows System are used
by the majority of Linux distributions). There are a plethora of
open source applications available online for virtually every
platform and Mac OS X is no exception.”

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