Computer geek for more than 30 years, cut my teeth on TRS-80 machines back in the day. Played with Apple II-x machines in middle school, then PCs pretty much from then on.
I've been using Linux since about 2002, starting with some jacked-up, no-name distro from China on a no-name second-rate ECS laptop I ordered without an OS. Distro came with it, so I thought I'd try it. The next week, I ended up at Barnes & Noble buying the Redhat Linux 6 Bible.
I futzed around with that for a while until I was introduced to Distrowatch.com and Debian in 2005. The firm at which I was serving my internship was in the process of migrating its entire back room from Windows server to Linux, standardizing the servers on Debian. I burned an .iso of Ubuntu 5.04 and was amazed at its ability to recognize all the hardware on the old Dell POS that I was using. The rest is history.
I've been largely Windows-free since about 2007, replacing each proprietary application I need with its open-source equivalent, and in most cases its open-source superior!