Looking for non-Linux open-source options? From ghosts of past operating systems to fascinating works in progress, here are my top picks.

If you hear the term "open-source," you might think of Linux. However, Linux distros aren't the only open-source operating systems. There are plenty in use today besides Linux. Some date back to even ...

There’s a large selection of free and open source (FOSS) operating systems available these days, and choosing the right one for any given circumstance can be quite a challenge. This article is ...

ReactOS is a free and open source operating system designed to be compatible with Windows software and drivers. While it’s been under active development since 1999, the operating system is still ...

Elementary OS vs. Linux Mint: I compared my once favorite distro to the Windows alternative ...

My browser is now running an operating system, and really, I have questions.

As the Japanese government prepares to introduce more electronic government projects next year, it has begun studying open-source operating systems in a move that could lead to the replacement of some ...

Linux turns 35 years this year, and the operating system remains the backbone of most supercomputers. Here's why the world's ...