Once you've pressed a key on the keyboard and the signal gets to the computer, what happens next? Dr Steve Bagley on the software side of a key-press.

Key Presses pt1:    • What Happens When I Press a Key? - Co...  

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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