Turbo Pascal
Borland International's Pascal. Perhaps the first integrated development environment for MS-DOS.
Versions 1.0-3.0: standard Pascal with a few extensions Versions 4.0 (1987) and 5.0: separate compilation. Version 5.5: object-oriented. Version 6.0: Turbo Vision OOP library.
http://borland.com/Product/ProdInfo.html.
tptc translates Turbo Pascal to Turbo C.