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Ultrix
Series of discontinued Unix operating systems by DEC / From Wikipedia, the free encyclopedia
Ultrix[1] (officially all-caps ULTRIX) is the brand name of Digital Equipment Corporation's (DEC) discontinued native Unix operating systems for the PDP-11, VAX, MicroVAX[2] and DECstations.
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![]() RISC/ULTRIX 4.5, running Motif Window Manager | |
Developer | Digital Equipment Corporation |
---|---|
Written in | C |
OS family | Unix (4.2BSD) |
Working state | Historic |
Source model | Closed source |
Initial release | 1984; 40 years ago (1984) |
Latest release | 4.5 / 1995; 29 years ago (1995) |
Platforms | PDP-11, VAX, MIPS |
Kernel type | Monolithic kernel |
Default user interface | Command-line interface, DECwindows GUI |
License | Proprietary |
Preceded by | UNIX/V7M |
Succeeded by | OSF/1 |
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