Debian

Debian is a Linux distribution that forms the base of the Ubuntu operating system in infrastructure.

Version History
1.1 - Buzz (released on 1996-06-17) 1.2 - Rex (released on 1996-12-12) 1.3 - Bo (released on 1997-06-05, support ended on 1998-05-14) 2.0 - Hamm (released on 1998-07-24, support ended on 1999-02-15)