On 30. Jun 2004, at 3:01, Alasdair Lumsden wrote:
While Mach is derived from 4.3BSD (circa 1986~1988), there's been about
15 years worth of divergence since then. For example, FreeBSD is
monolithic while Mach is more micro-kernel based. Also the driver models
are quite different, eg Darwin uses IOKit (Object Oriented driver
interface model).
From Apple's webpages previewing Tiger:
"The upgraded kernel, based on FreeBSD 5.x, provides optimised resource locking for better scalability across multiple processors, support for 64-bit memory pointers through the System library and standards-based access control lists."
http://www.apple.com.au/macosx/tiger/unix.html
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