Ok, so you know what CAPTCHAs are right? Well if you don’t then you really need to get with the times. CAPTCHA stands for Completely Automated Public Testing to tell Computers and Humans Apart. This was the invention to stop robot sign ups and god knows what else and it’s all thanks to Alan Turing who is actually one of the most well known computer programmers of our time. Born in 1912 and died in 1954 Alan Turing remains to this day to be one of the most genius geeks there ever was or is. His great inventions were and are still popular and very useful today.

His many programmes for computers and technology made computers what they are today and because of him we have loads of cool geeky stuff so I think he deserves a high place in all geek lists. Alan Turing wasn’t a super geek he just knew his techie stuff so I can’t really call him a geek… I’d say he’s more of a nerd and a cool computer nerd at that. He was a genius and thanks to him we don’t need to worry about robots taking over the web! Phew – really glad of that.