After graduation, Berners-Lee worked as an engineer at the telecommunications company Plessey in Poole. In 1978, he joined D.G. Nash in Dorset, where he helped create type-setting software for printers.
Berners-Lee worked as an independent contractor at CERN from June to December 1980. While there, he proposed a project based on the concept of hypertext, to facilitate sharing and updating information among researchers. To demonstrate, he built a prototype system named ENQUIRE.
After leaving CERN in late 1980, he went to work at John Poole's Image Computer Systems, Ltd, in Bournemouth, England. He ran the company's technical side for three years. The project he worked on was a "real-timeremote procedure call" which gave him experience in computer networking. In 1984, he returned to CERN as a fellow.
In 1989, CERN was the largest Internet node in Europe, and Berners-Lee saw an opportunity to join hypertext with the Internet:
"I just had to take the hypertext idea and connect it to the Transmission Control Protocol and domain name system ideas and—ta-da!—the World Wide Web ... Creating the web was really an act of desperation, because the situation without it was very difficult when I was working at CERN later. Most of the technology involved in the web, like the hypertext, like the Internet, multifont text objects, had all been designed already. I just had to put them together. It was a step of generalising, going to a higher level of abstraction, thinking about all the documentation systems out there as being possibly part of a larger imaginary documentation system.”
Berners-Lee wrote his initial proposal in March 1989, and in 1990, with the help of Robert Cailliau (with whom he shared the 1995 ACMSoftware System Award), produced a revision which was accepted by his manager, Mike Sendall. He used similar ideas to those underlying the ENQUIRE system to create the World Wide Web, for which he designed and built the first Web browser. His software also functioned as an editor (called WorldWideWeb, running on the NeXTSTEP operating system), and the first Web server, CERN HTTPd (short for Hypertext Transfer Protocol daemon).
" Mike Sendall buys a NeXT cube for evaluation, and gives it to Tim [Berners-Lee]. Tim's prototype implementation on NeXTStep is made in the space of a few months, thanks to the qualities of the NeXTStep software development system. This prototype offers WYSIWYG browsing/authoring! Current Web browsers used in "surfing the Internet" are mere passive windows, depriving the user of the possibility to contribute. During some sessions in the CERN cafeteria, Tim and I try to find a catching name for the system. I was determined that the name should not yet again be taken from Greek mythology. Tim proposes "World-Wide Web". I like this very much, except that it is difficult to pronounce in French..." by Robert Cailliau, 2 November 1995.
The first website built was at CERN within the border of France, and was first put online on 6 August 1991:
Info.cern.ch was the address of the world's first-ever web site and web server, running on a NeXT computer at CERN. The first web page address was http://info.cern.ch/hypertext/WWW/TheProject.html, which centred on information regarding the WWW project. Visitors could learn more about hypertext, technical details for creating their own webpage, and even an explanation on how to search the Web for information. There are no screenshots of this original page and, in any case, changes were made daily to the information available on the page as the WWW project developed. You may find a later copy (1992) on the World Wide Web Consortium website.
It provided an explanation of what the World Wide Web was, and how one could use a browser and set up a web server.
In 1994, Berners-Lee founded the W3C at MIT. It comprised various companies that were willing to create standards and recommendations to improve the quality of the Web. Berners-Lee made his idea available freely, with no patent and no royalties due. The World Wide Web Consortium decided that its standards should be based on royalty-free technology, so that they could easily be adopted by anyone.
In a Times article in October 2009, Berners-Lee admitted that the initial pair of slashes ("//") in a web address were actually "unnecessary". He told the newspaper that he could easily have designed web addresses not to have the slashes. "There you go, it seemed like a good idea at the time," he said in his lighthearted apology.
Tim Berners-Lee at the Home Office, London, on 11 March 2010
In June 2009 then British Prime Minister Gordon Brown announced Berners-Lee would work with the UK Government to help make data more open and accessible on the Web, building on the work of the Power of Information Task Force. Berners-Lee and Professor Nigel Shadbolt are the two key figures behind data.gov.uk, a UK Government project to open up almost all data acquired for official purposes for free re-use. Commenting on the opening up of Ordnance Survey data in April 2010 Berners-Lee said that: "The changes signal a wider cultural change in Government based on an assumption that information should be in the public domain unless there is a good reason not to—not the other way around." He went on to say "Greater openness, accountability and transparency in Government will give people greater choice and make it easier for individuals to get more directly involved in issues that matter to them."
In November 2009, Berners-Lee launched the World Wide Web Foundation in order to "Advance the Web to empower humanity by launching transformative programs that build local capacity to leverage the Web as a medium for positive change."
Berners-Lee is one of the pioneer voices in favour of Net Neutrality, and has expressed the view that ISPs should supply "connectivity with no strings attached," and should neither control nor monitor customers' browsing activities without their expressed consent. He advocates the idea that net neutrality is a kind of human network right: "Threats to the Internet, such as companies or governments that interfere with or snoop on Internet traffic, compromise basic human network rights."
Berners-Lee joined the board of advisors of start-up State.com, based in London.
The Alliance for Affordable Internet (A4AI) was launched in October 2013 and Berners-Lee is leading the coalition of public and private organisations that includes Google, Facebook, Intel and Microsoft. The A4AI seeks to make Internet access more affordable so that access is broadened in the developing world, where only 31% of people are online. Berners-Lee will help to decrease internet access prices so that they fall below the UN Broadband Commission's worldwide target of 5% of monthly income.
This NeXT Computer was used by Berners-Lee at CERN and became the world's first web server
In 2003 he was awarded The Royal Photographic Society's Progress Medal and Honorary Fellowship (HonFRPS) in recognition of any invention, research, publication or other contribution which has resulted in an important advance in the scientific or technological development of photography or imaging in the widest sense.
In 2003, he received the Computer History Museum's Fellow Award, for his seminal contributions to the development of the World Wide Web.
On 15 April 2004, he was named as the first recipient of Finland's Millennium Technology Prize, for inventing the World Wide Web. The cash prize, worth one million euros (about £892,000, or US$1.3 million, as of Sept 2011), was awarded on 15 June, in Helsinki, Finland, by the President of the Republic of Finland, Tarja Halonen.
On 27 January 2005, he was named Greatest Briton of 2004, both for his achievements and for displaying the key British characteristics of "diffidence, determination, a sharp sense of humour and adaptability", as put by David Hempleman-Adams, a panel member.
On 13 June 2007, he received the Order of Merit, becoming one of only 24 living members entitled to hold the honour, and to use the post-nominals 'O.M.' after their name. (The Order of Merit is within the personal bestowal of The Queen, and does not require recommendation by ministers or the Prime Minister)
^Quittner, Joshua (29 March 1999). "Tim Berners Lee—Time 100 People of the Century". Time Magazine. "He wove the World Wide Web and created a mass medium for the 21st century. The World Wide Web is Berners-Lee's alone. He designed it. He loosed it on the world. And he more than anyone else has fought to keep it open, nonproprietary and free."