I graduated college in 1990 and one of the places I interviewed for a job was with the Electric Boat division of General Dynamics. They build the submarines for the US Navy.
During my interview they told me that the computers on the current generation of subs were programmed by punch card. The punch cards were sent to the one contractor that had the ability to convert them to the magnetic tape actually used to load them onto the subs systems.
Perhaps by now they have indeed upgraded from punch cards & mag tape to floppy disks of some sort…
Redaction means it’s still classified for some reason. Makes me wonder what they think might still be sensitive on a 40+ year old lecture like this, when DOJ guidelines call for automatic declassification of “records having permanent historical value” after only 25 years unless they fall into a handful of very specific categories, like divulging the identity of an active agent.