Re: Starting on the Museum exhibits, ending on them.
When I trained on a IBM360 Mark 1965, complete with a card sorter, mag tape storage and, I do believe a thundering 256K of RAM, I obtained a Certificate of Competence on the IBM 026 Keypunch Duplicator. Whadda thrill that was.
Then there were the weather map machines, fascinating technology involving chemically treated paper, a spinning glass cylinder, an IP26 PMT, various tone activates relays to set the drum sped, and several SAMOS earth satellites. Oh, and a modem eventually upgraded to 1200 baud. My piece of the action was still tube technology.