#6 GNU C compiler (gcc)

Came into existence: March 22, 1987

The GNU Compiler Collection (GCC) is a compiler system produced by the GNU Project supporting various programming languages. GCC has been adopted as the standard compiler by most other modern Unix-like computer operating systems, including Linux, and the BSD family. GCC is also available for most embedded platforms, including Symbian (called gcce), AMCC and Freescale Power Architecture-based chips. The compiler can target a wide variety of platforms, including videogame consoles such as the PlayStation 2 and Dreamcast.

Stallman was listed as the author but cited others for their contributions, including Jack Davidson and Christopher Fraser for the idea of using RTL as an intermediate language, Paul Rubin for writing most of the preprocessor and Leonard Tower for "parts of the parser, RTL generator, RTL definitions, and of the Vax machine description."

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