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  * Mach's [[concepts]].

  * [*Meet Mach* by James
    Scott](http://beefchunk.com/documentation/macosx-programming/Meet_Mach.pdf),
    a summary of Mach's history and main concepts.

  * *[[The_GNU_Mach_Reference_Manual|gnumach/reference_manual]]*.

  * {{$mach#kernel_foundation_unix}}

  * {{$mach#vm}}

  * {{$mach#kernel_principles}}

  * {{$mach#kernel_interface}}

  * {{$mach#server_writer}}

  * {{$mach#server_interface}}

  * [*The Unofficial GNU Mach IPC beginner's
    guide*](http://hurdextras.nongnu.org/ipc_guide/), an easy introduction to
    Inter Process Comunication in the Mach microkernel by Manuel Pavón
    Valderrama.

  * [*Mach IPC without
    MIG*](http://walfield.org/pub/people/neal/papers/hurd-misc/mach-ipc-without-mig.txt),
    an exercise by Neal Walfield *to understand Mach IPC at one of its lowest
    application levels*.
    
      * [*ipc-hello.c*](http://walfield.org/pub/people/neal/papers/hurd-misc/ipc-hello.c):
        *Hello world à la mach ipc*.

  - [Porting and Modifying the Mach 3.0 Microkernel](http://shakthimaan.com/downloads/hurd/Porting%20and%20Modifying%20the%20Mach%203.0%20Microkernel.pdf)

  - [An IO System for Mach](http://shakthimaan.com/downloads/hurd/An%20IO%20System%20for%20Mach.pdf)

  - [A Programmers' Guide to Mach System Call](http://shakthimaan.com/downloads/hurd/A.Programmers.Guide.to.the.Mach.System.Calls.pdf)