[ Thanks to Gene
Schiavone for this link. ]
“One of the most common POSIX-type operating systems is Linux,
the basis for LynuxWorks’ LynxOS. That operating system is
compliant with Navy OACE, though Linux is not a good fit for some
high-performance, real-time military applications, Morris says.“Still, LynxOS runs the shipboard self-defense system (SSDS),
DD(X) destroyer prototype, and Army Future Combat System, he says.
SSDS engineers picked LynxOS because they needed a POSIX
environment so they could also use Solaris and other UNIX
platforms…”