How did early computers like EDSAC deal with programs? Professor Brailsford on the code David Wheeler wrote to make people's life easier.

Our special thanks go to Professor Martin CampbellKelly for the simulator and advice.

If you want to play with the simulator, you can find it here: http://bit.ly/c_EDSACSim

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This video was filmed and edited by Sean Riley.

Computer Science at the University of Nottingham: https://bit.ly/nottscomputer

Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com