For you youngsters out there, I should point out that users were not allowed in the hallowed space of the machine room. I punched my cards, submitted them and sometime later, would get some printout, possibly with a pithy, scribbled comment from the operator.
I remember at high school we punched our cards with paper clips (Miniwaft?) and sent them into the local uni and waited a few days for the results to come back. My first "program" produced a table that showed statute miles verses nautical miles. Checked it with my slide rule!
