View source for MachTen

{{Short description|Unix-like operating system}}
{{Distinguish|Mach 10 (disambiguation)}}
{{Infobox OS
|name = MachTen
|logo =
|screenshot =
|caption =
|developer = Tenon Intersystems
|family = [[Unix-like]] [[Berkeley Software Distribution|BSD]]
|source model = [[Closed source]]
|working state = Discontinued
|latest release version = 4.1.4
|latest release date = <!-- {{Start date and age|20yy}} -->
|kernel type = [[Microkernel]]
|license = [[Commercial software|Commercial]], [[Proprietary software|proprietary]]
|supported platforms = [[Macintosh]]: [[Motorola 68000]], then [[PowerPC]] 
|website = {{URL|www.tenon.com/products/machten}}
}}
'''MachTen''' is a [[Unix-like]] [[operating system]] from Tenon Intersystems. It is based on [[Berkeley Software Distribution|4.4BSD]] and the [[Mach kernel]], and features the [[X Window System]] and [[GNU]] programming tools. It runs only as a [[classic Mac OS]] application program (in a [[virtual machine]]) on [[Macintosh]] computers.

MachTen development started in 1989, culminating in the first release in 1991. The Professional MachTen branch, intended for [[Motorola 68000]]-based Macintoshes, ended with release 2.3. The Power MachTen branch, which is [[Power Macintosh]] compatible, lacks some of the features of Professional MachTen (including true [[Virtual memory|virtual]] and [[Memory protection|protected memory]] models), but takes full advantage of the [[PowerPC]] processor and is compatible with [[Mac OS 9]] through its final version, 4.1.4. MachTen is no longer developed, and is functionally superseded by [[macOS]].

== See also ==
* [[A/UX]]
* [[MacMach]]
* [[macOS]]
* [[NeXTSTEP]]

== External links ==
* {{Official website|www.tenon.com/products/machten}}
* [http://www.floodgap.com/retrotech/machten/ Floodgap's Power MachTen Hacking Page]

{{Mach-like}}
{{Unix}}
{{Microkernel}}
{{Operating systems}}
{{Unix-stub}}

[[Category:Berkeley Software Distribution]]
[[Category:Mach (kernel)]]
[[Category:Microkernel-based operating systems]]
[[Category:Microkernels]]
[[Category:Unix emulators]]