Ultrix
Series of discontinued Unix operating systems by DEC / From Wikipedia, the free encyclopedia
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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.
Series of discontinued Unix operating systems by DEC
 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; 39 years ago (1984) |
| Latest release | 4.5 / 1995; 28 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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