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 Campbell-Kelly 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