One is the world's oldest Linux distro, the other isn't Linux at all. Each delivers superb stability - let's compare.

PCWorld’s guide helps users navigate the overwhelming choice of approximately 250 Linux distributions by focusing on five main strains: Debian, Red Hat/Fedora, Arch, Slackware, and Gentoo.

Over this series test-driving operating systems, we’ve tried to bring you the unusual, the esoteric, or the less mainstream among the world of the desktop OS. It would become very boring very quickly ...

You can revive your aging PC with a lightweight Linux distro such as Puppy Linux and Linux Lite. But which one should you choose?