Implementing Undo - Computerphile

We use undo daily, but have you thought about what goes into making a functional undo in a program? Dr Steve Bagley takes us through some of the things we need to think about if we're implementing it ourselves! Computerphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://jane-st.co/computerphile This video was filmed and edited by Sean Riley. Computerphile is a sister project to Brady Haran's Numberphile. More at https://www.bradyharanblog.com