Evolution of the desktop.
My first that I actually owned? Win 3.1 on a 486 box circa 1994. What about you?
It's rather shocking that they haven't evolved more. I've always wondered what the next paradigm will be. Guess we will still be waiting for a while.
P.S. I said owned because I've been using computers since the Apple II / TRS-80 / Commodore 64 days. But back then because believe it or not, they were expensive (shocking!), I actually had to rely on the kindness of friends and school labs. And soon after the 486, I moved up to a Pentium 90 hertz and felt like I was hot as a snot rocket.