I probably used that machine for 15 years. It became a nice, distraction-free word processor (WordStar!!), a great machine for running Sierra games, and I had Turbo Pascal and Turbo C, and eventually ran DR-DOS, I believe. I almost blew it up once while making an ISA board to connect to some sensors. Replace quite a few caps on that weekend.

My other machine(s) went from Windows 3.11 -> Windows 95 -> Linux, but that Tandy 1000 had a near-permanent spot for quite a while.