Mach is a so-called first generation [[microkernel]].  It is the
microkernel currently used by the [[Hurd]].

* [[Documentation]]
* [[Concepts]]
* [[History]] ([Torvalds, Tanenbaum Debate](http://www.dina.dk/~abraham/Linus_vs_Tanenbaum.html))

# Implementations

* [[GNUMach]]
* [[OskitMach]] - A Once Successor of Mach based on OSKit
* [Apple's Darwin](http://developer.apple.com/darwin/) ([API](http://developer.apple.com/documentation/Darwin/Conceptual/KernelProgramming/index.html)) (**non-free**)

# Related

* [[Mach_Interface_Generator|mig]]