My first computer was an Atari 1040STF, which I used until about 1995, when I replaced it with an HP 715/50 workstation. I put the Atari away in the attic, where it remained for the last 18 years.
While staying with my parents over Christmas, I decided to finally get it out and determine whether it would still work (and thus whether to keep it or dispose of it), and to try and get the data off its hard disk. There wasn’t anything terribly important on the hard disk—otherwise I would have done this earlier—, so there wasn’t really anything at stakes, but I thought it might be an interesting exercise in computer archeology.