The techno-literati have long-heralded the day when the Linux operating system will dominate the desktops of the world. But so far, it’s been wishful thinking. That’s not to say Linux has not been a success. It most definitely has, but in a different realm.

Unlike U.S. Supreme Court Justice Potter Stewart’s view on pornography, we don’t always know Linux when we see it. That’s because it’s embedded in a myriad of products that accomplish tasks for us, without our knowing what is actually doing all that work behind the scenes.