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.

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