Univac Digital Trainer - [ The first computer I ever used. (1968) The UDT was totally useless for anything other than training in machine language programming, a bizarre specialty even in those days. It was 'state of the art' technology - transistors instead of vacuum tubes. - PSC ]
An IBM Key Punch machine which operates like a typewriter except it produces punched cards rather than a printed sheet of paper. -- I use to have a love/hate relationship with this machine. I used in it High School 1977-79, College for computer programming (1980-81), and up to 1990 while working with computers in the Air Force.
Teletype Model 33 - [ I was qualified (in theory at least) to work on these. In the U.S. Navy, they had a reputation for being bulletproof (reliable). I don't really know that for sure, because I never saw one that was heavily used. But they were a big seller in both the military and civilian versions for many years, and eventually enjoyed an active used market for computer hobby nerds. - PSC]
Shugart SA 400 minifloppy Disk Drive - [ The FIRST 5.25" floppy disk drive (1977). By today's standards it's totally laughable (measly 100Kbyte capacity & slow), but very useful for hobby computers and early PCs. I tested it thoroughly for Honeywell Information Systems, and it performed perfectly. It annoyed me that most people (even the other engineers) would take one look at a mini-floppy drive and call it "cute" - PSC]