Alan Turing and Sir Tim Berners-Lee
Alan Turing
He was very influential in the development of the computer. During World War II he worked at the government code and cypher school at Bletchley Park's codebreaking center. He was working on breaking the Enigma Code during the war, he built the first computer to enable people to decipher the codes.
Sir Tim Berners-Lee
The idea originated in 1984 when he was working at CERN, the European Particle Physics Laboratory in Geneva, Switzerland. The Scientists wanted a way to share information so he then formed a system which enabled people to share information around the world.
He wrote the first Web page editor/browser (“WorldWideWeb”) and the first Web server (“httpd“). In 1993 the world wide web was available to anyone.
The web has developed over time and changed the world; it is the worlds most powerful form of communication.
http://www.bbc.co.uk/history/historic_figures/berners_lee_tim.shtml