My father tells of teaching high school computer science with card punches in the late 70s. My husband tells of writing his first, extremely rudimentary code on a computer when he was 2 in 1984 (he was a very early reader, his mom had been a computer programmer and his dad is an electrical engineer, if you’re wondering how that happened).

So while it makes sense that Jack wouldn’t have a computer in his room, since they would still mostly be desktops, and large ones at that. But I’m confused about the card punch, unless it’s for history of computer science.