Alt-C → compile (blink). Alt-R → run. Output appears. Total time: under 3 seconds. That felt magical in 1986.
program Hello; begin writeln('Hello, world!'); end. turbo pascal 3
This made Turbo Pascal the darling of hardware hackers who needed to control serial ports, video memory directly (at $B800:0000), or game ports. Alt-C → compile (blink)
The defining feature of Turbo Pascal 3 was its incredible speed. Unlike its competitors, the compiler was written in assembly language video memory directly (at $B800:0000)