First released in 1983, Turbo Pascal is a comprehensive software development system for the Pascal programming language. It was developed by Borland, and it ran on the CP/M, PC-DOS, and MS-DOS operating systems. Turbo Pascal was the first software development package to include the editor, compiler, and linker all in one application.
Turbo Pascal was extremely successful, and subsequent versions also included enhancements for the language itself, making it a unique programming language in its own right. For instance, versions 5.5 and later of Turbo Pascal supported object-oriented programming.