Gallery: The 20 most significant events in Linux's 20-year history Summary: Linux is 20 years so let's take a walk though time with Linux at some of its high, and low, points. By Steven J. Vaughan-Nichols | September 11, 2011 -- 15:24 GMT (08:24 PDT) Follow @sjvn Previous | Next Image 21 of 21 2011: IBM's Watson computers, running Linux, wins at Jeopardy and sets a new standard for expert systems. Topics: Linux, Open Source, Operating Systems, Software Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.