This is amazing. You can have a picture or song that takes up five megabytes now. My first Windows PC (1992) only had four megabytes of memory. It was top of the line, too.
When I registered for college courses (1971-75), they used punch cards to enroll you in a class. If there were, for example, 20 slots in a class, there would be 20 punch cards in a bin and they would give you one if there were cards left. When you were done, they processed your little stack of cards.
Sad! 