Tenberry Software

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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. [1] [2] [3] Its president was Terence Colligan. [4]

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References

  1. "HelpDesk". InfoWorld. 29 August 1994. p. 41.
  2. Microcomputers (1995). Windows/DOS Developer's Journal. R&D Publications.
  3. "DEP Terry Colligan | Bitácora de Javier Gutiérrez Chamorro (Guti)". 17 September 2018.
  4. "IBM, Microsoft Move to Retrieve Desperate OS/2 Situation". Tech Monitor - CBR. 9 October 1989. Retrieved 3 January 2026.