From Wikipedia, the free encyclopedia
DeveloperCarnegie Mellon University
OS familyUnix-like
Working stateDiscontinued
Source modelProprietary
Marketing targetResearchers, hobbyists
Kernel typeMicrokernel
user interface
License4.3BSD, Mach 2.5
Succeeded byMkLinux, OS X, PureDarwin

MacMach is a computer operating system from the early 1990s, developed by Carnegie Mellon University. Architecturally, it consists of Berkeley Software Distribution (BSD) 4.3 code running on the Mach microkernel, with the Apple Macintosh System 7 running experimentally as a Mach task. The entire system runs on Macintoshes based on the Motorola 68000 series (68k) family of microprocessors. Its license requires the user to have an AT&T UNIX license, and includes Apple, Inc.'s restriction against further redistribution.[1][2][3]

See also[edit]


  1. ^ Williamson, Zon (December 9, 1993). "MacMach FAQ". Carnegie Mellon University. Retrieved March 3, 2015.
  2. ^ Megginson, David (April 26, 1992). "MacMach". Newsgroupcomp.os.minix. Retrieved March 3, 2015.
  3. ^ Thompson, Mary (April 1994). "MacMach.demise". Carnegie Mellon University. Retrieved March 3, 2015.