Binary: Plusses & Minuses (Why We Use Two's Complement) - Computerphile

Negative Binary Numbers - you may have heard of 'signed' numbers, but do you know how they work? Professor Brailsford explains not just how, but why we use the systems we do.

Binary Addition: http://youtu.be/WN8i5cwjkSE
Most Difficult Program to Compute?: http://youtu.be/i7sm9dzFtEI
Floating Point Numbers: http://youtu.be/PZRI1IfStY0

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This video was filmed and edited by Sean Riley.

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

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