Most of us deal with data compression on a daily basis, but what is it and how does it work? Professor David Brailsford introduces compression with regards to text and pictures.

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This video was filmed and edited by Sean Riley.
(some questions from Brady, in case you are confused!)

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

Computerphile is a sister project to Brady Haran's Numberphile. See the full list of Brady's video projects at:http://periodicvideos.blogspot.co.uk/...