I wouldn't say OS X is a microkernel. Much of its codebase was built off of Mach, but much was also built off of BSD. For example, its network stack logic resid

I wouldn't say OS X is a microkernel. Much of its codebase was built off of Mach, but much was also built off of BSD. For example, its network stack logic resides in the kernel, which is certainly not microkernel-esque. See http://en.wikipedia.org/wiki/Darwin_(operating_system)#Kernel http://en.wikipedia.org/wiki/Darwin_(operating_system)#Kerne...