Tenberry Software

{{Short description|American software company}}

Tenberry Software (previously Rational Systems) was a software company notable for the development of DOS/16M and DOS/4G, which were the first industry standard DOS extenders.{{cite magazine|url=https://books.google.com/books?id=jjgEAAAAMBAJ&q=Tenberry%2BSoftware&pg=PA41|title=HelpDesk|magazine=InfoWorld|date=29 August 1994|page=41}}{{cite book|last=Microcomputers|title=Windows/DOS Developer's Journal|url=https://books.google.com/books?id=QiFMAAAAYAAJ|year=1995|publisher=R&D Publications}}{{Cite web|url=http://www.javiergutierrezchamorro.com/dep-terry-colligan/3678|title = DEP Terry Colligan | Bitácora de Javier Gutiérrez Chamorro (Guti)|date = 17 September 2018}}