IBM Punched Cards Explained - Video 207

Here I explain how the once ubiquitous IBM 80 column punched card worked and its wide range of uses. Once the way to store computer data and to enter computer programs, it is now obsolete. Please consider 'buying me a coffee' https://www.buymeacoffee.com/francisj... It helps me buy bits and pieces to make these videos! Very many thanks, F-J