A rather amusing quote from the wiki: "Controlling a laser with Linux is crazy, but everyone in this room is crazy in his own way. So if you want to use Linux

A rather amusing quote from the wiki: "Controlling a laser with Linux is crazy, but everyone in this room is crazy in his own way. So if you want to use Linux to control an industrial welding laser, I have no problem with your using PREEMPT_RT." -- Linus Torvalds