Computer drive 1961
Air bearing rotating disc 6,000 rpm
This seems to be remotely similar to todays hard drives, what do you think?
I'm not quite up on my computer history, did common PC drive technology come from the aircraft industry?
Link - Verdan's Memory Unit:
http://www.flightglobal.com/pdfarchive/view/1961/1961%20-%201430.html