Cracking the code was only half the battle. To keep the upper hand, when using Bill Tutte’s statistical methods, the detailed counting had to be automated – enter Colossus! Professor Brailsford takes up the story.
The professor’s notes:
http://www.eprg.org/computerphile/lorenz-combined.pdf
Bletchley Park Playlist: https://www.youtube.com/playlist?list=PLzH6n4zXuckrSWWIDJ_3To7ro5-naSk8v
Professor Brailsford used the book “Colossus” by B. Jack Copeland and others (Oxford University Press, 2006). Also recommended are chapters 18 and 19 from : “The Bletchley Park Codebreakers” by R. Erskine and M. Smith (eds.) Biteback Publishing 2011
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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