Turbo Pascal is an integrated development environment (IDE) and compiler for the Pascal programming language. Developed by Borland in the 1980s, it was known for its fast compilation speed and user-friendly interface, making it popular among both beginners and experienced programmers. The software allowed developers to write, compile, and debug their programs in a single environment. Its features included a powerful editor, built-in help, and support for object-oriented programming, which contributed to its widespread use in educational settings and for developing applications during its peak popularity.