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→See also: Added UNIX-RT & RTLinux to See Also since they seem to have a similar UNIX-in-a-Hypervisor setup. |
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{{Infobox OS
UTS is an implementation of the [[UNIX]] System V, Release 4 (SVR4) [[operating system]] for [[IBM mainframe]] (and compatible) computers. [[Amdahl]] created the first versions of UTS, with UTS Global later acquiring rights to the product.▼
| name = UTS
| logo =
| screenshot =
| caption =
| developer = [[Amdahl Corporation]] / UTS Global
| source_model =
| kernel_type =
| supported_platforms = [[IBM mainframe]]s (and compatible)
| ui = [[Command-line interface]]
| family = [[Unix]] [[UNIX System V|SVR4]]
| released = {{Start date and age|1981|5}}
| latest_release_version = UTS 4.5
| latest_release_date =
| latest_test_version =
| latest_test_date =
| marketing_target =
| programmed_in =
| prog_language =
| language = [[English language|English]]
| updatemodel =
| package_manager =
| working_state = Discontinued
| license =
| website =
}}
{{History of IBM mainframe operating systems|unix}}
▲'''UTS''' is
| first = Lars | last = Poulsen
| title = IBM 360/370/3090/390
| date = 2001
| url = http://www.beagle-ears.com/lars/engineer/comphist/ibm360.htm }}
</ref> with UTS Global acquiring rights to the product in 2002. UTS Global has since gone out of business.
== System requirements ==
UTS Release 4.5 supports the following [[IBM System/390|S/390]] model [[microprocessor|processor]]s and their successors:
* Amdahl 5990, 5995A, 5995M series of [[Emitter-coupled logic|ECL]] processors
* Amdahl Millennium Global Server series of [[CMOS]] processors
* Fujitsu Global Server
* IBM ES/9000/9021 series of ECL processors
* IBM G4, G5 & G6 Servers (the 9672 R and X series of CMOS processors)
== History==
The UTS project had its origins in work started at [[Princeton University]] in 1975<ref>[https://www.tuhs.org/Archive/Distributions/IBM/370/toms_blog_pt1.html The Roots of UNIX for the IBM Mainframe], Tom Lyon's Personal Blog.</ref> to port UNIX to the IBM VM/370 system. Team members there were Tom Lyon, Joseph Skudlarek, Peter Eichenberger, and [[Eric Schmidt]]. Tom Lyon joined Amdahl in 1978, and by 1979 there was a full [[Version 6 Unix]] system on the Amdahl 470 being used internally for design automation engineering. In late 1979 this was updated to the more commonly ported [[Version 7 Unix|Version 7]].
In 1980 Amdahl announced support for Unix on the System 470.<ref name="fiedler198310">{{cite news | url=https://archive.org/stream/byte-magazine-1983-10/1983_10_BYTE_08-10_UNIX#page/n133/mode/2up | title=The Unix Tutorial / Part 3: Unix in the Microcomputer Marketplace | work=BYTE | date=October 1983 | access-date=30 January 2015 | author=Fiedler, Ryan | pages=132}}</ref> Five years later, IBM announced its own mainframe Unix, [[IX/370]], as a competitive response to Amdahl.<ref>{{cite news |newspaper=Computerworld |date=18 February 1985 |title=Users: new life for VM |page=11 |url=https://books.google.com/books?id=iwX8vVdMAckC&pg=PA11 |first=John |last=Gallant}}</ref>
The commercial versions of UTS were based on [[UNIX System III]] and [[UNIX System V]]. In 1986, Amdahl announced the first version to run natively on IBM/370-compatible hardware, UTS/580 for its Amdahl 580 series of machines; previous Unix ports always ran as "guests" under the IBM [[VM (operating system)|VM]] [[hypervisor]].<ref>{{cite news |first=Jeffry |last=Beeler |newspaper=Computerworld |date=27 January 1986 |title=Amdahl broadens Unix-based UTS line |url=https://books.google.com/books?id=33QfOHT69aMC&pg=PA13}}</ref> Version 4.5 was based on Unix System V, Release 4 (SVR4).
== See also ==
* [[Linux on IBM Z]]
* [[OpenSolaris for System z]]
* [[UNIX System Services]] in [[OS/390]] and its successors▼
* [[UNIX-RT]]
* [[RTLinux]]
== References ==
▲* [[UNIX System Services]]
{{Reflist}}
== External links ==
* [https://web.archive.org/web/20080422064423/http://www.utsglobal.com/Unix.html UTS Global home page (archived page at Archive.org, April 2008)]
{{Unix-like}}
[[Category:Unix variants]]▼
[[Category:1981 software]]
{{
{{unix-stub}}
▲[[Category:Unix]]
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