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

Embedded system developers have a wide range of operating systems available to them today. Of course, the most straightforward operating system is to have no operating system! However, many systems ...

Google's Android mobile operating system is open source, which means anyone can, in theory, build their own mobile operating system based on the Android Open Source Project (AOSP). Why, then, are ...

Developers talk a lot about “immutability.” Outside the technical world, it usually means something negative: unmoving, inflexible, and entrenched. However, in the technical field, these features ...