Debian
also: Debian GNU/Linux, DEB
Debian is a free, community-driven Linux distribution known for stability, package management via apt, and serving as the base for many other distributions like Ubuntu.
Debian is one of the oldest and most influential Linux distributions, first released in 1993. It emphasizes free software, stability, and community governance through the Debian Project—a volunteer organization that maintains the distribution.
Debian uses the apt (Advanced Package Tool) package manager, which handles installation, updates, and dependency resolution for thousands of curated software packages. The distribution follows a strict release cycle with Stable, Testing, and Unstable branches to balance reliability with software currency.
Many popular distributions build on Debian, including Ubuntu, Linux Mint, and Elementary OS. Debian itself runs on everything from personal computers to servers and embedded systems, and is particularly favored in professional and production environments where stability is critical.