DYNIX

{{For|similar sounding terms|Dynax|Dynas|Dymax|Dymas}}

{{About|the operating system|the integrated library system|Dynix (software)|the company|Dynix Corporation}}

{{Infobox OS

| name = DYNIX

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| developer = Sequent Computer Systems

| family = Unix-like (BSD or SysV)

| working state = Discontinued

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| released = {{Start date and age|1984}}

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| succeeded by = DYNIX/ptx

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DYNIX (DYNamic UnIX) was a Unix-like operating system developed by Sequent Computer Systems, based on 4.2BSD and modified to run on Intel-based{{cite web

|title=New Version of IBM DB2 Universal Database

|date=May 17, 1999

|url=https://www-03.ibm.com/press/us/en/pressrelease/2178.wss|archive-url=https://web.archive.org/web/20190601062828/https://www-03.ibm.com/press/us/en/pressrelease/2178.wss|url-status=dead|archive-date=June 1, 2019}} symmetric multiprocessor hardware. The third major (Dynix 3.0) version was released May, 1987;{{cite web

|title=Emerging Technologies Multi/Parallel Processing

|url=http://www.bitsavers.org/pdf/dec/competitiveAnalysis/Multi_Parallel_Processing_Dec87.pdf}} by 1992 DYNIX was succeeded by DYNIX/ptx,{{cite book |title=DYNIX/ptx System Administration Guide, Volume 1 (1003-59809-00)

|publisher=Sequent Computer Systems, Inc}} which was based on UNIX System V."The system we investigated was a NUMA-Q 2000 System from IBM running a proprietary, System V based, operating system DYNIX/ptx."{{cite book

|title=Database and Expert Systems Applications: 11th International

|url=https://archive.org/details/springer_10.1007-3-540-44469-6 |isbn=3540679782

|author1=Mohamed Ibrahim |author2=Josef Küng |author3=Norman Revell |date=2000}}

IBM obtained rights to DYNIX/ptx in 1999, when it acquired Sequent{{cite web

|website=CNET |title=SCO pulls second IBM Unix license

|url=https://www.cnet.com/news/sco-pulls-second-ibm-unix-license}} for $810 million.{{cite news

|newspaper=Computerworld |title=IBM drops Intel high-end server

|url=https://www.computerworld.com/article/2576139/network-servers/ibm-drops-intel-high-end-server.html |date=May 13, 2002}}

IBM's subsequent Project Monterey was an attempt, circa 1999, "to unify AIX with Sequent's Dynix/ptx operating system and UnixWare." By 2001, however, "the explosion in popularity of Linux ... prompted IBM to quietly ditch" this.{{cite magazine |magazine=Computerworld |date=February 1, 1999 |page=28 |url=https://books.google.com/books?id=kxlABcUbI_wC

|title=Sequent "Project Monterey" Road Map}}{{cite web

|title=Caldera loads Linux apps on UnixWare |website=ZDNet |url=https://www.zdnet.com/article/caldera-loads-linux-apps-on-unixware/}}