What is Darwin? 

Darwin is the core of Mac OS X. The Darwin kernel is based on FreeBSD and Mach 3.0 technologies and provides protected memory and pre-emptive multitasking. Darwin runs on PowerPC-based Macintosh computers and a version is also available for x86-compatible computers.

http://www.opensource.apple.com/projects/darwin/

-----

''And here I thought it was an OS that implemented EvolutionaryAlgorithms in its selection of user processes to run and kill:  Competition for scarce resources taken to its logical conclusion.  ;->''

Nah, that's CoreWars.

''But is there any connection to CharlesDarwin?''  Not really.  Just another CodeName with connotations of improvement.

----
See also MacOsx, FreeBsd, and MachMicrokernel.
----
CategoryOperatingSystem