Originally posted by: heyheybooboo
Ahem . . . .
Thursday 10 Mar 2005
Question:
Did you invent the Internet?
Tim Berners-Lee: No, no, no!
When I was doing the WWW, most of the bits I needed were already done.
Vint Cerf and people he worked with had figured out the Internet Protocol, and also the Transmission Control Protocol.
Paul Mockapetris and friends had figured out the Domain Name System.
People had already used TCP/IP and DNS to make email, and other cool things. So I could email other people who maybe would like to help work on making the WWW.
I didn't invent the hypertext link either. The idea of jumping from one document to another had been thought about lots of people, including Vanevar Bush in 1945, and by Ted Nelson (who actually invented the word hypertext). Bush did it before computers really existed. Ted thought of a system but didn't use the internet. Doug Engelbart in the 1960's made a great system just like WWW except that it just ran on one [big] computer, as the internet hadn't been invented yet. Lots of hypertext systems had been made which just worked on one computer, and didn't link all the way across the world.
I just had to take the hypertext idea and connect it to the TCP and DNS ideas and -- ta-da! -- the World Wide Web.
Q: I understand you invented the Internet....
A: Sorry, not me! I was lucky enough to invent the Web at the time when the Internet already existed - and had for a decade and a half. If you are looking for fathers of the Internet, try Vint Cerf and Bob Kahn who defined the "Internet Protocol" (IP) by which packets are sent on from one computer to another until they reach their destination. See:
* "Cerf's Up" : MCI WorldCom on technology" with profile and FAQs by Vint, who currently works for MCI.
Vint explains the timing:
"The DESIGN of Internet was done in 1973 and published in 1974. There ensued about 10 years of hard work, resulting in the roll out of Internet in 1983. Prior to that, a number of demonstrations were made of the technology - such as the first three-network interconnection demonstrated in November 1977 linking SATNET, PRNET and ARPANET in a path leading from Menlo Park, CA to University College London and back to USC/ISI in Marina del Rey, CA."
David Clark, of MIT's LCS, is another one I can point to who put in the work in the 1970s which made the Web possible in the 1990s.
Vint Cerf and Bob Kahn used, in making IP, the concept of packet switching which had been invented by Paul Barran.
It is also good to mention the Domain Name Service upon which the web relies heavily. The protocols which make the DNS work were pioneered and standardized by Paul Mockapetris.
Q: What is the difference between the Net and the Web?
A: The Internet ('Net) is a network of networks. Basically it is made from computers and cables. What Vint Cerf and Bob Kahn did was to figure out how this could be used to send around little "packets" of information. As Vint points out, a packet is a bit like a postcard with a simple address on it. If you put the right address on a packet, and gave it to any computer which is connected as part of the Net, each computer would figure out which cable to send it down next so that it would get to its destination. That's what the Internet does. It delivers packets - anywhere in the world, normally well under a second.
Lots of different sort of programs use the Internet: electronic mail, for example, was around long before the global hypertext system I invented and called the World Wide Web ('Web). Now, videoconferencing and streamed audio channels are among other things which, like the Web, encode information in different ways and use different languages between computers ("protocols") to provide a service.
The Web is an abstract (imaginary) space of information. On the Net, you find computers -- on the Web, you find document, sounds, videos,.... information. On the Net, the connections are cables between computers; on the Web, connections are hypertext links. The Web exists because of programs which communicate between computers on the Net. The Web could not be without the Net. The Web made the net useful because people are really interested in information (not to mention knowledge and wisdom!) and don't really want to have know about computers and cables.
I now return you to your Fantasy World.