Turbo Pascal was my first. You never forget your first. Turbo C then Turbo C++ were also amazing. My fingers still remember the copy/paste ^KB ^KC.

Turbo C++ 3 is still popular in parts of the world. There is a steady trail of people on the various C++ forums asking why modern code they copy and paste fails to compile on Turbo C++, and why code that works on Turbo C++ fails so miserably when fed to a compiler less than twenty years old.