One of the first programs that I wrote and that went commercial was written in Turbo Pascal as well. It also had a GUI system with EGA/VGA drivers where most of

One of the first programs that I wrote and that went commercial was written in Turbo Pascal as well. It also had a GUI system with EGA/VGA drivers where most of the performance critical code was done using built-in assembly. Turbo Pascal was mighty good and productive environment. Turbo Pascal's built-in assembly was also used to implement preemptive multithreading in the same program.