MacMach

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]

MacMach

Developer	Carnegie Mellon University
OS family	Unix-like
Working state	Discontinued
Source model	Proprietary
Marketing target	Researchers, hobbyists
Platforms	Macintosh
Kernel type	Microkernel
Userland	4.3BSD
Default user interface	Command-line
License	4.3BSD, Mach 2.5
Succeeded by	MkLinux, OS X, PureDarwin

See also

• MkLinux
• MachTen
• A/UX
• NeXTSTEP