Ultrix


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Ultrix

(operating system)
A version of Unix based on the Berkeley version, designed and implemented by DEC to run on their VAX and DECstation processors.

ULTRIX

A version of Unix from Digital for its PDP-11 and VAX series. See Digital Equipment.
References in periodicals archive ?
Ultrix, the revolutionary software-enabled routing platform
Also enhanced is the Ultrix 12G router/audio processing engine/multi-viewer, which now adds 12G clean/quiet switching.
IBM, Unisys, Amdahl, Sun, DEC, and Hewlett-Packard all followed suit and created their own versions and names: HP-UX, A/UX, AIX, Ultrix, and so on.
53) Suppose, for example, a consumer alleges that a software licensor represented on its website that its software "is compatible with the Ultrix operating system," when it is not.
The Ultrix hydraulic press (ultra low deflection under load) is said to deliver unprecedented low levels of deflection and provides finished dimensions of molded parts to help customers eliminate costly and time-consuming post-press machining operations, according to a two-page, four-color bulletin.
SIFT was implemented in C and has been compiled on several Unix platforms: DEC Ultrix 4.
The client software for ULTRIX for Sun can be downloaded from: <http://cindi.
15) An empirical evaluation for a few hand-transformed programs was conducted using MIT Scheme (with the "compiler" option set, so as to generate compiled code) running under Ultrix on a DECstation 5000/33 with 24MB of RAM.
The disadvantage was that applications that ran on Digital's earlier Ultrix flavor of Unix and DEC's older MIPS--based platforms that preceded the Alpha couldn't run without modification on the new architecture.
To demonstrate this effect, we performed experiments using ULTRIX Version 3.
Chen continued this work by porting a version of Epoxie to a MIPS-based DECstation running both Ultrix and Mach 3.
All experiments were run on a DECstation 5000/240 running Ultrix, and times were user plus system times obtained from the UNIX time routines (which are not very precise) and are given in seconds.