The linked video on the piece introduces the term “job queue” by means of programs, after being punched onto paper tape, are hung up on hooks for subsequent execution by the committer operation when the prior job completes.
This is possibly the first time that a “job queue” has been recorded on video (1951) in relation to computer programs, and since the computer was single threaded and could only run one computer program at a time, it was necessary for the programs to wait in line and be manually processed in turn.