Follow ZDNET: Add us as a preferred source on Google. Do you have an old PC lying around just waiting to serve as your secondary desktop machine, or a way to take your first steps with Linux? Maybe you want to skip the Ubuntu track and go with a Linux distribution that is regularly updated, lightweight, blazingly fast, and incredibly reliable. If that's the case, don't overlook Omega Linux. Omega Linux is an Arch-based Linux distribution designed to be an OS perfectly suited for older, lower-powered hardware. This distro can run on: Also: Have an old PC? These 5 lightweight Linux distributions will bring it back to life Those system requirements cover machines built in the last decade. One of the most impressive things about Omega Linux is that, during my testing, I found it to typically use less than 1% of the CPU when idle. In other words, the OS uses very few system resources, which frees them up for applications. The OS uses so few system resources.…