I've used Linux for decades, but I'd switch to FreeBSD for this one feature

ZDNET's key takeaways FreeBSD is one of the most stable OSes on the planet.FreeBSD is also more challenging than Linux.You ...
Hosted on MSN

Ironclad OS project popping out Unix-like kernel in a unique mix of languages

If you're looking for a Unix-like, POSIX-compatible, real-time kernel, there's no shortage of projects trying to build one. Ironclad stands out for using the Ada programming language and its formally ...
Hackaday

It’s UNIX. On A Microcontroller.

It’s difficult to convey in an era when a UNIX-like operating system sits in your pocket, how there was once a time when the mere word was enough to convey an aura of immense computing power. If you ...
PC Magazine

Unix like

Conforming to the basic architecture and principles of the Unix operating system. Unix-like operating systems, such as Linux, may be POSIX compliant, which means that applications communicate with the ...
Hackaday

Will The Real UNIX Please Stand Up?

Ken Thompson and Dennis Ritchie at a PDP-11. Peter Hamer [CC BY-SA 2.0] Last week the computing world celebrated an important anniversary: the UNIX operating system turned 50 years old. What was ...