UTS is a discontinued implementation of the
UNIX operating system for
IBM mainframe (and compatible) computers.
Amdahl created the first versions of UTS, and released it in May 1981, 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
S/390
The IBM System/390 is a discontinued mainframe product family implementing the ESA/390, the fifth generation of the System/360 instruction set architecture. The first computers to use the ESA/390 were the Enterprise System/9000 (ES/90 ...
model
processors and their successors:
* Amdahl 5990, 5995A, 5995M series of
ECL processors
* Amdahl Millennium Global Server series of
CMOS
Complementary metal–oxide–semiconductor (CMOS, pronounced "sea-moss", ) is a type of metal–oxide–semiconductor field-effect transistor (MOSFET) fabrication process that uses complementary and symmetrical pairs of p-type and n-type MOSFE ...
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 to port UNIX to the IBM VM/370 system. Team members there were Tom Lyon, Joseph Skudlarek, Peter Eichenberger, and
Eric Schmidt
Eric Emerson Schmidt (born April 27, 1955) is an American businessman and software engineer known for being the CEO of Google from 2001 to 2011, executive chairman of Google from 2011 to 2015, executive chairman of Alphabet Inc. from 2015 to 20 ...
. 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.
In 1980 Amdahl announced support for Unix on the System 470.
Five years later, IBM announced its own mainframe Unix,
IX/370
AIX (Advanced Interactive eXecutive, pronounced , "ay-eye-ex") is a series of Proprietary software, proprietary Unix operating systems developed and sold by IBM for several of its computer platforms.
Background
Originally released for the ...
, as a competitive response to Amdahl.
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 hypervisor.
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
References
External links
UTS Global home page (archived page at Archive.org, April 2008)
Unix variants
1981 software
{{unix-stub