Editing NonStop (server computers) (section)

==History==
Originally introduced in 1976 by Tandem Computers Inc., the line was later owned by [[Compaq]] (from 1997), Hewlett-Packard Company (from 2003)<ref>{{cite web |last=Shankland |first=Stephen |title=Top-end server group comes home to HP |url=https://www.cnet.com/tech/tech-industry/top-end-server-group-comes-home-to-hp/ |date=13 June 2002 |access-date=16 February 2023 |website=CNET |language=en}}</ref> and Hewlett Packard Enterprise (since 2015). In 2005, the HP Integrity "NonStop i" (or TNS/E) servers, based on [[Intel Corporation|Intel]] [[Itanium]] microprocessors, was introduced. In 2014, the first "NonStop X" (or TNS/X) systems, based on Intel [[x86-64]] processors, were introduced. Sales of the Itanium-based systems ended in July 2020.<ref name="hpe-brochure"/>

Early NonStop applications had to be specifically coded for [[fault tolerance]]. That requirement was removed in 1983 with the introduction of the Transaction Monitoring Facility (TMF), along with Pathway transaction management software and SCOBOL applications (or, later, NonStop Tuxedo transaction management software), which handles the various aspects of fault tolerance on the system level.