James May asks "What are binary numbers, and why does my computer need them? Watch James getting confused here: http://youtu.be/8Kjf5x-1-_s Binary: http://mathworld.wolfram.com/Binary.html Counting in base 10: http://mae.ucdavis.edu/dsouza/Classes/ECS15-W13/counting.pdf James May on how Barcodes work: http://www.youtube.com/watch?v=VbHzx4nWqWY&feature=share&list=PLMrtJn-MOYmfqNgyPxx6NYMZnd25y4shc Follow us on twitter: https://twitter.com/theheadsqueeze Like is on Facebook: https://www.