

In the compsci building at uni, there is a museum of sorts in the hall to the labs. At the beginning of the storage section, there is a 20Mb storage device. It is the size of a washing machine, I have no idea how much it weighs, but it has to be in the 100’s of kg range.
Sitting on top are much more modern devices, 5.25"/3.5"/2.5" drives; I haven’t been back for a decade to know if they kept going as tech improved.
Very effective.
The RAM section with the hand woven memory modules is so awesome. 1kb of RAM; tiny iron rings with fine copper wires threaded through them.