Editing USAS (application) (section)

{{short description|Series of mainframe applications}}
{{more refs|date=July 2024}}
'''USAS''' is [[software suite]] for [[mainframe computers]], mainly intended for use in the [[airline]], transportation, and [[hospitality]] industries. It is made up of a series of diverse and relatively complex [[application software|applications]] written for the [[Unisys]] 1100-series, 2200-series, and Clearpath IX environments. 

[[All Nippon Airways]] became the first company to adopt the system in the late 1970s.<ref name=aircore2006>{{cite web |title=AirCore NEWS |url=https://www.app5.unisys.com/library/gmmail/emails/documents/GCTransAirCoreJuly2006.pdf |publisher=[[UNISYS]] |access-date=30 July 2024 |date=July 2006}}</ref> Its name was originally an acronym for '''Univac Standard Airline Systems''', but the product line is now referred to simply as "USAS". With advancements in computing, USAS is slowly being replaced in the airline industry with other software, with Unisys also developing AirCore to replace its USAS offering.<ref name=aircore2006/>