It wasn't my stuff, but I just cleaned out the basement storage area at work. I don't know enough about old electronics to tell you exactly what that crap was, but I know it was obsolete in the 70s and some jackass kept it when we changed buildings 12 years ago. Piles of 5 1/4 floppies, stand-alone drives for them, cables for things no one remembers, a section of cabinets badly burned in an explosion 10 years ago (sadly, that's not a joke), a gas chromatograph that's too radioactive to throw away but too expensive to dispose of properly, records of faculty searches from 20 years ago, and more.
To give some perspective, we have chemicals from the 40s and glassware from the 1890s that people just won't let us throw away. Unfortunately, the state "ethics" rules (lol Illinois) won't let us sell the stuff on eBay, where it's worth quite a bit.