Professor Brailsford rounds up the whole Colossus affair, and explains how Turing actually played a small but significant part in Bill Tutte's work.
Colossus Playlist: https://www.youtube.com/playlist?list=PLzH6n4zXuckrSWWIDJ_3To7ro5-naSk8v
Enigma Playlist: https://www.youtube.com/playlist?list=PLzH6n4zXuckodsatCTEuxaygCHizMS0_I
What Happens When I Press a Key?:
Choosing a Password:
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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