FAQ.html 62 KB

Raw Blame History Permalink

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
  <title>Frequently asked questions by the Press - Tim BL</title>
  <meta http-equiv="content-type" content="text/html; charset=iso-8859-1">
  <link href="general.css" rel="stylesheet" type="text/css">
</head>

<body bgcolor="white" lang="en" text="#000000">
<h3><a href="Overview.html"><img alt="Tim Berners-Lee"
src="../../Press/Stock/Berners-Lee/2001-eur-head-quarter.jpg"
align="right"></a></h3>

<p>Note: Many of these questions are now answered in much more depth in my
book, <a href="Weaving/Overview.html"><em><strong>Weaving the
Web</strong></em></a></p>

<h1>Frequently asked questions</h1>

<p>I feel that after a while if I answer the same questions again, I will
start answering rather mechanically, and will forget important steps, and
after a while it won't make sense. So I have put a few answers from my
outgoing mail in this list to save everyone time. But this list is (c) TBL so
don't quote directly in the press without permission. Do feel free to quote
for school projects.  If you are doing a school project,  I have a special <a
href="Kids">page of questions that people tend to ask for reports</a>.
Thanks.</p>

<p></p>
<ul>
  <li><a href="#Roles">Roles at MIT, W3C and Southampton?</a></li>
  <li><a href="#Spam">Spam - "Please stop sending it to me"! (2002/4)</a></li>
  <li><a href="#have">I have this great new idea - changing the world</a></li>
  <li><a href="#What">What's happening?</a> (2000)</li>
  <li><a href="#What1">What about peer-peer file sharing?</a></li>
  <li><a href="#General1">General questions 1999</a></li>
  <li><a href="FAQ.html#General">General questions 1998</a>
    <ul>
      <li><a href="#Internet">Q: I understand you invented the
        Internet....</a></li>
      <li><a href="#InternetWeb">Q: What is the difference between the Net
        and the Web?</a></li>
      <li><a href="#What2">What did you have in mind when you first developed
        the Web?</a></li>
    </ul>
    <p></p>
  </li>
  <li><a href="FAQ.html#Examples">Examples of early WWW hypertext</a>
    <ul>
      <li>What was the first web page?</li>
    </ul>
  </li>
  <li><a href="#Physics">Physics: why and influence</a></li>
  <li><a href="FAQ.html#standards">W3C and standards (1996)</a></li>
  <li><a href="FAQ.html#Machinery">What computer do you use?</a></li>
  <li><a href="FAQ.html#Cailliau">Robert Cailliau's role</a></li>
  <li><a href="#cernoffice">Where exactly did you work at CERN?></a></li>
  <li><a href="FAQ.html#Spelling">Spelling of WWW</a></li>
  <li><a href="#etc">Why the //, #, etc?</a></li>
  <li><a href="FAQ.html#browser">What were the first browsers?</a></li>
  <li><a href="FAQ.html#Influences">What influenced the design of the
  web?</a></li>
  <li><a href="#your">Why is your email address on my screen?</a></li>
  <li><a href="#tell">Can you tell me more about your personal life?</a></li>
</ul>

<p></p>

<h3></h3>

<h3 id="FOAF"><a name="LinkedIn">Please update</a> your address book at
(site)</h3>

<p>Q: I'm updating my address book entries on (some site which shares contact
information). Could you log on and update your address book, please?  Then we
can keep in touch and easily track changes to each other's addresses.</p>

<p>A: No, I have a <a href="http://www.foaf-project.org/">FOAF</a> file. Do
you?  Why should I have to get an account at every site which keeps a record
of me?  That's not using the web. In fact I have that information on the web
as data. A URI for me is</p>

<p>http://www.w3.org/People/Berners-Lee/card#i</p>

<p>That is available in RDF, the W3C standard for generic data interchange,
as card.rdf, and also on Notation3 at card.n3.  You can use programs like the
tabulator or Foafnaut for reading FOAF files, and various sites index then in
various ways. </p>

<p>You will notice that my FOAF page has links to information about my
organization, whose URI is http://www.w3.org/data#W3C, and the page
http://www.w3.org/data has links to the W3C publications and organizational
structure and so on.</p>

<p>If you are updating your address book, please take the time to publish a
FOAF page. (PS: Plaxo <a
href="http://support.plaxo.com/bin/answer.py?answer=642">says it supports
FOAf</a> but I don't know how well)  If you join the <a
href="http://my.opera.com/community/"> Opera community</a>, or
<a href="http://www.livejournal.com/">LiveJornal</a>,
you get a FOAF page automatically.</p>

<h3 id="Roles">Roles at W3C, MIT and Southampton?</h3>

<p>(2004) When I moved to MIT from CERN in 1994, it was to start the World
Wide Web Consortium and act as its Director. Since then, my time has been
split between the various tasks that involves, and, once the W3C was running
smoothly, also forward-looking research into the future of decentralized
systems like the Web and specifically the Web of machine-processsable data,
the "Semantic Web". In 2002, Steve Bratt joined W3C as Chief Operating
Officer and in 2006 was named CEO, which made that part of my life much
easier, and made W3C run very much more effectively. In 2004, I also accepted
a part-time post at Southampton University in the UK. Southampton is one of
the leading sites in Semantic Web research in the UK. While this will take a
fairly limited amount of my time, I hope it will help collaboration between
MIT and Southampton, and it will allow me to help Southampton and MIT to plan
future research directions.</p>

<p>My roles as W3C Director and resarcher at CSAIL continue. With Steve in
the CEO position, I can emphasize the technical side of my work such as that
with the W3C Technical Architecture Group.</p>

<h3 id="Spam">Spam - "please stop sending it to me!"</h3>

<p>This question is one I have started (2002/04) getting more and more
frequently.  It is (ironically) normally sent automatically by people who are
so enraged by spam (unsolicited bulk commercial email)  that they try to find
some way to protest to someone who will be able to stop the spammers.  Most
self-respecting Internet Service Providers will terminate their contract with
anyone who abuses the service. So it is a reasonable to take that approach.
So these people generally set up a program to check through the email to find
the web page it points to.  Spammers are always after people's money, so
there is some pointer to a web site which will (indirectly) take it. The plan
is basically that these folk search the email message for pointers to web
sites, and then search the domain  name information to find out who is
responsible for that domain.  They then try to email someone "upstream" who
will cut off the spammer's email access.</p>

<p>If you are one of these people, and you end up mailing me (timbl@w3.org)
it is probably because I am one of the contacts for www.w3.org. Why do you
find www.w3.org? Because you search the hypertext (HTML) email too
simplistically and you found the XML namespace identifier which defines the
HTML language. This is a NOT a hypertext link. It identifies the
specification of the language in which the email is written. The identifier
in www.w3.org space is there because the World Wide Web consortium is the
body which defines HTML. So w3.org has nothing to do with the sender of the
spam. So if you vent your frustration on me, it just shows the software you
are using is broken.</p>

<p>By the way, I don't know whether the technique works. I have a horrible
feeling that the spammers will just revel in the feedback they get from this.
But I don't know. Check out abuse.net from which I have got some of these. I
am <em>not</em> mad at you for trying to stop spam. I am mad at those who
spammed you. For the record:</p>
<ul>
  <li>I hate spam.</li>
  <li>I and my staff waste a significant amount of time deleting spam.</li>
  <li>I feel that those who make their living sending spam damage the whole
    community for the sake of greed.</li>
  <li>The lie "you are only getting this because you have been signed up for
    it" makes me sick.</li>
  <li>My handling change for unsolicited bulk email is $10,000 plus recovery
    costs and legal fees.</li>
  <li>I would support legislation which made it illegal to to falsify or omit
    the full identification of those responsible for any commercial mail.</li>
  <li>I believe that the falsification of email headers for one's own gain
    and other's loss is fraudulent.</li>
</ul>

<p>See also:</p>
<ul>
  <li><a href="/Help/Webmaster#spam">W3C webmaster FAQ on this issue</a></li>
</ul>

<h3 id="have">I have a great idea -Changing the world</h3>

<p><em>Q: I have been working for a long time on a very special and new idea
which will revolutionize computing. Can I tell you about it?</em></p>

<p>A: This is the most difficult answer to have to write. I am sorry to say
that I can't give your vision of the future the time it would take to compare
it with existing architectures and point out the similarities and
dissimilarities. I get quite a few requests like this. What I would humbly
suggest (and only suggest) is that you do that comparison piecemeal, and -
while keeping your vision in mind -- try to find the first piece to implement
in the move toward what you envisage. The world is can only really be changed
one piece at a time. The art is picking that piece.</p>

<p>When you have, then use the web to find out who is working in that area.
Acquaint yourself with the vocabulary they use for talking about it. Find a
way of explaining your novel idea in their terms, after you have understood
why it has not already been done your way. Then suggest that change.  If it
is an idea in computing, then you may want to write the code to show that it
works first.</p>

<p>(I didn't find lots of people willing to get excited about the idea of the
web. They quite reasonably asked to know why it was different from the past,
or other hypertext systems.  In retrospect, it was mainly that the
decentralized database is removed, allowing the system to scale, but allowing
for dangling links.  But it took a long time for that to surface as the
novelty.)</p>

<h3><a name="What">What's happening? 2000</a></h3>

<p><em>Q: What sort of technology should the forward-looking geeks in my
company be looking at?</em></p>

<p>A: You probably have a lot of people using XML by now. You should have
someone looking at the next level - <a href="/RDF/">RDF</a>.  Tell them not
to worry about the syntax, but check out the model. This is a question of
looking the data your company is storing and transferring, and making sure
that it can be represented in that simple circles-and-arrows RDF way.  This
is very simple. An important trick is that you use URIs to identify the
arrows as well as the circles.  Doing this homework will ensure that you have
a well-defined data model, which will allow you data to be combined, merged
with any other RDF-model data.  It will mean you will be able to multiply the
power of separate application areas by running RDF queries and new RDF-based
applications across both areas. It will mean that you will be there with
talent which understands the basic model as the <a
href="/2000/01/sw">Semantic Web</a> becomes all-important.</p>

<p>Other things to watch: <a href="/Graphics/SVG/">SVG - Scalable Vector
Graphics</a> - at last, graphics which can be rendered optimally on all sizes
of device.  The user interface world is rapidly becoming competent at <a
href="/Voice/">voice input and output </a>and W3C has standards in that area
coming along. <a href="/Signature/">XML Signature</a>  will let you to
digitally sign XML documents - find out how. But in general, always check out
the <a href="/">W3C home page</a> for what's new.</p>

<p>If your company/organization/self is a W3C member, then your Advisory
Committee representative has the task of understanding everything which is
happening in W3C, and everything in your company, and seeing where they
should be introduced.</p>

<h3><a name="What1">What do you think of peer-peer file sharing?
(2000)</a></h3>

<p><em>Q: What do you think about the peer-peer file sharing technology which
allows people t copy copyrighted information so easily? </em> </p>

<p>A: The issue is not simple - so I try to put my thoughts into a few words.
In general, the way to make a sane society is to enact and enforce laws
rather than to ban a given generic technology. (I would make the exception
for things which are specifically designed to harm such as guns and nuclear
bombs.) That said, one can make technology which supports our social and
legal frameworks better if one does it deliberately. One of the four domains
of the World Wide Web Consortium addresses <a href="/TandS/">Technology and
Society</a> for this reason. For example, in this case, I think we really
need standards for encoding the broad licensing terms of material so it can
be read and handled automatically. Then we can see, when the technology
allows one to see whether information is free or for pay, whether there is
still a substantial problem of theft.  The basic idea of forwarding copies
automatically between machines is a technical optimization of the
distribution protocol which is very useful and should not of itself be
disallowed just because it -- like many powerful things -- can be abused. I'd
point out that some ostensibly "peer-peer" systems are  centralized system in
fact, allowing centralized control and profit by the central server's owners.
Other systems are really decentralized, having no central server. These are
like internet news groups which have been around for ages and which raised
similar issues.</p>

<h3><a name="General1">General Questions, 1999</a></h3>

<p><em>Q: What is your opinion on 'Cyber Squatting' for domain names? (-Lia
Kim)</em></p>

<p>A: Domain names are a scarce resource - one of the few scarce resources in
cyberspace. I have little sympathy for those who scoop these up with the hope
of speculating on their value. This is not one of the most helpful activities
on the net. There are those who use their energy for the purposes of
furthering the technology or the content or the world in some way, but just
sitting on a domain name without using it in order to cash in later does not
seem to me a constructive .</p>

<h2><a name="General">General Questions, 1998</a></h2>

<h3><a name="Internet"><em>Q: I understand you invented the
Internet....</em></a></h3>

<p>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 <strong>Vint Cerf</strong> and
<strong>Bob Kahn</strong> who defined the "Internet Protocol" (IP) by which
packets are sent on from one computer to another until they reach their
destination. See:</p>
<ul>
  <li><a href="http://www.mci.com/cerfsup/">"Cerf's Up" : MCI WorldCom on
    technology"</a> with profile and FAQs by Vint, who currently works for
    MCI.</li>
</ul>

<p>Vint explains the timing:</p>

<blockquote>
  <p>"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."</p>
</blockquote>

<p>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.</p>

<p>Vint Cerf and Bob Kahn used, in making IP, the concept of packet switching
which had been invented by <strong>Paul Barran</strong>.</p>

<p>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 <a
href="http://www.nominum.com/about/chair-cso-bio.html">Paul
Mockapetris</a>.</p>

<h3><i><a name="InternetWeb">Q: What is the difference between the Net and
the Web?</a></i></h3>

<p>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.</p>

<p>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.</p>

<p>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.</p>

<p>Questions below derived from those asked by Taiwan's <i>Commonwealth</i>
magazine</p>

<h3><i><a name="What2">Q: What did you have in mind when you first developed
the Web?</a></i></h3>

<p>From <a href="ShortHistory">A Short Personal History of the Web</a>:</p>

<blockquote>
  A: The dream behind the Web is of a common information space in which we
  communicate by sharing information. Its universality is essential: the fact
  that a hypertext link can point to anything, be it personal, local or
  global, be it draft or highly polished. There was a second part of the
  dream, too, dependent on the Web being so generally used that it became a
  realistic mirror (or in fact the primary embodiment) of the ways in which
  we work and play and socialize. That was that once the state of our
  interactions was on line, we could then use computers to help us analyze
  it, make sense of what we are doing, where we individually fit in, and how
  we can better work together.</blockquote>

<h3><i><a name="true">Q: Do you have had mixed emotions about "cashing in" on
the Web?</a></i></h3>

<p>A: Not really.  It was simply that had the technology been proprietary,
and in my total control, it would probably not have taken off.  The decision
to make the Web an open system was necessary for it to be universal.  You
can't propose that something be a universal space and at the same time keep
control of it.</p>

<h3><i><a name="happy">Q: Are you happy with what the World Wide Web has
turned out so far?</a></i></h3>

<p>A: That is a big question.  I am very happy at the incredible richness of
material on the Web, and in the diversity of ways in which it is being used.
There are many parts of the original dream which are not yet implemented.
For example, very few people have and easy, intuitive tool for putting their
thoughts into hypertext.  And many of the reasons for, and meaning of, links
on the web is lost.  But these can, and I think will, change.</p>

<h3><i><a name="What3">Q: What do you think of the commercial turf wars going
on the Web?</a></i></h3>

<p>A: There has always been a huge competition to come out with the best Web
technology.  This has followed from the fact that the standards, being open,
allow anyone to experiment with new extensions. This produces the threat of
fragmentation into many Webs, and that threat brings the companies to the W3C
to agree about how to go forward together.  It is the tension of this
competition and the need for standards which drives W3C forward at such a
speed.</p>

<h3><i><a name="What4">Q: What should the lay person be aware of as the Web
evolves?</a></i></h3>

<p>A: We should all learn to be information smart: to understand when a Web
site, or a piece of software, or an Internet Service provider  plan, is
giving us biased information. We should learn to distinguish quality
information and quality links.  As technology evolves, and
machine-understandable information on the Web becomes available, we should be
aware of the sudden changes which large-scale machine processing might have
on our businesses.</p>

<h3><i><a name="could">Q: How could the Web be a more interactive, creative
medium?</a></i></h3>

<p>A: Nothing can be perfect, but the Web could be a lot better.  It would
help if we had easy hypertext editors which let us make links between
documents with the mouse.  It would help if everyone with Web access also had
some space they can write to -- and that is changing nowadays as a lot of
ISPs give web space to users. It would help if we had an easy way of
controlling access to files on the web so that we could safely use it for
private, group, or family information without fear of the wrong people being
able to access it.</p>

<h3>Metadata</h3>

<p><i>Q: You talked about the need for a metadata language. Can you tell us
laymen what it is? </i></p>

<p>A: "Meta" is used with anything which is about itself - so a metabook
would be a book about books, and metadata is data about data.  On the Web,
this means all sorts of information about information: its ownership,
authorship, distribution rights, privacy policy, and so on. These needs are
driving us to make ways of putting information on the web designed for
computers to be able to understand.  Web pages at the moment in HTML are
designed to be read by humans. In the future, some Web pages will be in "RDF"
-- Resource Description Framework.  This will be read by computer programs
which will help us organize ourselves and our data and possibly everything we
do.</p>

<h3>Privacy</h3>

<p><i>Q: Are you worried about privacy on the Web?</i></p>

<p>A: When it comes to privacy, my personal view is that the consumer needs
some legal or regulatory protection by default. The W3C has a project called
"P3P" for privacy which will allow a user to control if and how information
is given away to a Web server.  P3P will allow Web sites to specify their
privacy policy and users to automatically be warned about  sites whose
policies they don't like. See the <a href="../../P3P/Overview.html">P3P</a>
project.</p>

<h3>ECommerce</h3>

<p><i>Q. Do you shop online? What do you think about the E-Commerce?</i></p>

<p>A: Yes, I buy a lot of things online myself.  I think that Web shopping as
it is is only the tip of a huge larger change which will come when I can find
things and compare prices automatically, and when electronic financial
instruments are commonplace.</p>

<h3> Web and Education</h3>

<p><i>Q: Peter Drucker has predicted that information technology will bring
about the demise of the university as currently constituted. Do you share
this view? What changes will the Web help bring to education?</i></p>

<p>A: I hope that educators will pool their resources and create a huge
supply of online materials.  I hope much of this will be available freely to
those especially in developing countries who may not have access to it any
other way.  Then I think we will see two things.  One will be that keeping
that web of material up to date will take a lot of time and effort - it will
seem like more effort than creating it in the first place.  The other is that
we will see how essential people, and their wisdom, and their personal
interactions, are to the educational process.  A university is a lot more
than its library.</p>

<h3>The effect of the Web on how we work</h3>

<p><i>Q: How do you see the web shape the new, knowledge-based
economy?</i></p>

<p>A: The Web is simply a name for all the information you can get online. So
it will be the abstract place where  the knowledge-based economy happens.
Already the W3C staff team works with three international sites, many
offices, and several people working from or near home.  The Web will open up
new forms of business altogether, and make us rethink the way we run existing
businesses.  It can turn bureaucracy over to machines, and let people get on
with the creativity. It will help us see where we each fit, with our own
experience, talents and passions, among the millions of other people and
theirs. It can help us work together more effectively, remove
misunderstanding, and bring about peace and harmony on a global scale.  But
it can only do these things is we learn to use it wisely,  and we think very
carefully about both the technology and the laws we make or change around
it.</p>

<p></p>

<h2><a name="Examples">Examples of early WWW hypertext</a></h2>

<p><em>Q: What was the first web page?</em></p>

<p>A: Apart from local "file:" URLs on my machine (which was the first
browser as well as the first server), the first http one (end of 1990) was
basically</p>

<p>http://nxoc01.cern.ch/hypertext/WWW/TheProject.html</p>

<p>An alias was made so that this was later known as</p>

<p>http://info.cern.ch/hypertext/WWW/TheProject.html</p>

<p>It is not now (alas) served but a later (1992) copy of the original  pages
exists at <a
href="/History/19921103-hypertext/hypertext/WWW/TheProject.html">http://www.w3.org/History/19921103-hypertext/hypertext/WWW/TheProject.html</a></p>

<p><em>Q: Do you have any examples of the early Web which we could compare
with the current Web?</em></p>

<p>A: (1997):  I don't have a very early 1990,91 snapshot but there is a
snapshot of our web as of November 1992, much of which dates from earlier.
(Some pages for some reason don't work with Netscape 3.0 for some reason it
doesn't the old HTML for some reason or perhaps it just has a bug. They do
work with Internet explorer 4.0)</p>

<p>There is a <a
href="../../History/19921103-hypertext/hypertext/WWW/DesignIssues/Overview.html">list
of design issues</a> and a <a
href="../../History/19921103-hypertext/hypertext/Conferences/ECHT90/Introduction.html">trip
report on the 1990  European Conference on HyperText</a> and a <a
href="../../History/19921103-hypertext/hypertext/Conferences/ECHT90/Standardisation.html">note
on the "state of standardization" </a>(!) and an example of the use of the
web as a collaborative tool in some <a
href="../../History/19921103-hypertext/hypertext/WWW/DesignIssues/Topology.html">shared
notes on the topology of the web</a>  I wrote and Jean-Francois Groff
annotated .</p>

<p>The pages will look much the same as they did originally, although the
actual style sheet I used as a default with the original browser/editor you
can see converted approximately into a CSS style sheet if you read my <a
href="../../Provider/Style/Overview.html">Style Guide for Online Hypertext
</a>with a CSS-compliant browser such as IE 4.0.</p>

<p>Some of the links in the historical stuff have been accidentally saved
(much later)  incorrect absolute links -- if you really want to follow them
you can see where they ought to have gone by stripping of the prefix.</p>

<p></p>

<h2><a name="Physics">Physics: why and influence</a></h2>

<p>(Based on replies to David Brake, "New Scientist",1997/9)</p>

<p><i>Q: Why did you study physics?</i></p>

<p>A (1997) : My parents are both mathematicians: they actually met while
working on the Ferranti Mark I, the first computer sold commercially. My
mother has been dubbed the "first commercial computer programmer" as she went
with the machine when it was installed on the customer site. So we played
with 5 hole paper tape, and learned to enjoy mathematics wherever it cropped
up, and learned that it cropped up everywhere.</p>

<p>Later on, my hobby was electronics. When I left school, obviously I was
going to do something in maths, science and/or engineering. Emanuel school
was programmed to send people to Oxford, where the subjects are very narrow.
I took physics thinking it would be a sort of compromise between maths and
electronics, theory and practice. It turned out not to be that, but to be
something special and wonderful in itself.  Physics was fun, and in fact a
good preparation for creating a global system. In physics, you learn to think
up some simple mathematical rule on a  microscopic scale, which when scaled
will explain the macroscopic behavior. On the Internet, we try to dream up
computer protocols which when extrapolated to the macroscopic will produce an
information space with properties we would like.</p>

<p><i>Q: Why didn't you stay on to do a PhD in physics?</i></p>

<p>A: After undergraduate physics, you have a reasonable training in logical
thought and common sense, an ounce of philosophy and not enough maths to
study physics. I didn't meet anyone who was actually doing physics research
at the postgrad level and was really excited about it. I might have been more
tempted to take a PhD if I had had a role model who did have that
excitement.</p>

<p>What seemed much more exciting was the possibility of that electronic
hobby really taking off. The microprocessor was just hitting the world. I got
an early M6800 evaluation kit, and built myself a rack-based 8-bit system. I
had already while in college slowly put together a display unit out of an old
TV, bits of TTL logic and junk from the Tottenham Court Road. I joined
Plessey Data Systems: of the telecom companies doing the "milk round"
interviews the Poole (Dorset) site won hands down in terms of the sea and the
countryside!</p>

<p>Those who got into designing microprocessor hardware and software then
rode the crest of the wave of the deployment of microprocessor technology.
Compared with TTL, a microprocessor gave one that feeling of unbounded
opportunity which had everyone excited. Later, the thought of building an
abstract information space on top of it all had the same sort of kick.</p>

<p></p>

<p></p>

<h2><a name="standards">W3C and standards, 1996</a></h2>

<p><em>Q: What role does the </em><a href="/"><em>W3C</em></a><em> play in
setting standards?</em></p>

<p>A: (1996) W3C's mission is to realize the full potential of the web, by
bringing its members and others together in a neutral forum. The W3C has to
move rapidly (time measured in "web years" = 2.6 months) so it cannot afford
to have a traditional Standards process. What has happened to date has been
that W3C has, by providing a neutral forum and facilitation, and also with
the help of its technically astute staff, got a consensus among the
developers about a way to go. Then, this has been all that has been needed:
once a common specification has been prepared and a general consensus among
the experts is seen, companies have been running with that ball. The
specifications have become de facto standards. This has happened with for
example HTML TABLES, and PICS. Now in fact we have decided to start using not
a full standards process, but a process of formal review by the W3C
membership, in order to draw attention to specifications, and to cement their
status a little. After review by members, the specifications will be known as
W3C process.</p>

<p>(See <a href="../../Consortium/Process">process of review</a>)</p>

<p><i>Q:What do you make of the branding attempt of companies, by putting
little icons on their home pages saying, "best when viewed with Microsoft
Explorer, or Navigator?"</i></p>

<p>A: This comes from an anxiousness to use the latest proprietary features
which have not been agreed by all companies. It is done either by those who
have an interest in pushing a particular company, or it is done by those who
are anxious to take the community back to the dark ages of computing when a
floppy from a PC wouldn't read on a Mac, and a Wordstar document wouldn't
read in Word Perfect, or an EBCDIC file wouldn't read on an ASCII machine.
It's fine for individuals whose work is going to be transient and who aren't
worried about being read by anyone.</p>

<p>However, corporate IT strategists should think very carefully about
committing to the use of features which will bind them into the control of
any one company. The web has exploded because it is open. It has developed so
rapidly because the creative forces of thousands of companies are building on
the same platform. Binding oneself to one company means one is limiting one's
future to the innovations that one company can provide.</p>

<p><i>Q: What role do standards play in today's hyper competitive, and
fast-changing marketplace?</i></p>

<p>A: Common specifications are essential. This competition, which is a great
force toward innovation, would not be happening if it were not building on a
base of HTTP, URL and HTML standards. These forces are strong. They are the
forces which, by their threat to tear the web apart into fragmented
incompatible pieces, force companies toward common specifications.</p>

<p><i>Q:Is it overly ambitious to think standards can be set and adhered to?
Are they a relic of a kinder, gentler era?</i></p>

<p>A: Do you think that incompatibility, the impossibility of transferring
information between different machines, companies, operating systems,
applications, was "kinder, gentler"? It was a harsh, frustrating era. The Web
has brought a kindness and gentleness for users, a confidence in technology
which is a balm for IT departments everywhere. It has bought new hope. As a
result, great things are happening very fast. So this is a faster, more
exciting era.</p>

<p>Companies know that it is only interesting to compete over one feature
until everyone can do it. After that, that feature becomes part of the base,
and everyone wants to do it in one, standard, way. The smart companies are
competing on the implementations: the many other aspects such as
functionality, speed, ease of use and support which differentiate
products.</p>
<address>
  June 96
</address>

<h2><a name="Machinery">Machinery</a></h2>

<p>Q: <i>What sort of computer do you use?</i></p>

<p>A: (2002) A titanium G4 Powerbook  running OS X and under X11 fink
-installed stuff including Amaya.  I use a Nokia bluetooth  3670 tri-band GSM
phone which has a low-res camera.  The OS X operating system is very similar
to the NeXTStep operating system on which I developed the WorldWideWeb
program originally.</p>

<p></p>

<h2><a name="Cailliau">Robert Cailliau's role</a></h2>

<p>Robert Cailliau also worked at CERN, in a different division from me.
He was the first convert to the web technology after Mike Sendall who
originally let me start the project.
</p>
<p>Robert put in huge amounts of time and effort into the WWW
project.
He tried to get official funding for it from CERN.
He looked for students who might be interested in
working on it, and found several, some of whom, like Henrik Frystyk Nielsen and
Ari Luotonen, became famous
names in later WWW history.
He would organize the details with management, and I would
technically supervise, though our offices were several minutes walk
away across the site.
(If CERN had not been an international site,
mine would have been on French soil and his on Swiss,
so we would have had to show our passports each time!)
</p><p>
Some commentators suggest that Robert co-invented the WWW.
To set this straight, he did not invent it.
It wasn't his idea.
He did not write the specifications for UDIs (later to be URLs, then URIs),
or for HTML, the hypertext language, nor HTTP, the protocol, or the code
of the original implementation.
More than a year after my original proposal (March 1989), while I was
working on the code, he wrote a proposal to CERN proposing some staff be
allocated to the project.
This was a brave thing to do, as CERN was
always chronically short of manpower for the huge challenges it had taken on.
So Robert put himself out there to claim that effort on WWW was worth it.
</p>
<p>
He pushed CERN's management, also, for them to give the WWW technology away
without royalties.  This took 18 months, and a lot of nagging at the directorate level.
This was hugely important for the future of the WWW.
<p/>
<p>One cannot catalog in one place all the many many things Robert has done for the Web.
One thing which stands out was his organizing of the first WWW conference, at CERN,
after a short tussle with NCSA as to who should hold the first.
Since then Robert was for many years intimately involved wit the International
WWW Conference series.
</p>
<p>That's not to say either that Robert did not have a technical side.
His negotiating for internet access from a local university, and soldering up
of the modem so that we could demonstrate the WWW at the
Hypertext conference in San Antonio was a great illustration of his spirit.
He also later wrote a browser for the Mac, his favorite platform.
(Robert had  passion for user interfaces which people could actually use,
and so the Mac and the Web both appealed).  The browser, called Samba,
was an attempt to port the design of the original WWW browser,
which I wrote on the NeXT machine,
onto the Mac platform, but
was not ready before NCSA brought out the Mac version of Mosaic, which eclipsed it.
</p>
<p>Robert continued to speak on the subject of the web, promoting it,
explaining it, and defending it, for many years, and still does, though he
has retired from CERN and the conference committee.
The early days of the web were very hand-to-mouth.
So many things to do, such a delicate flame to kep alive.
Without Robert's energy and passion for it I cannot imagine that
it could have taken off as it did.
</p>
<h2><a name="cernoffice">Where exactly did you work at CERN?</a></h2>

<p>
I wrote the proposal, and developed the code in CERN Building 31.
I was on the second (in the european sense) floor, if you come out of the elevator
(a very slow freight elevator at the time anyway) and turn immediately right
you would then walk into one of the two offices I inhabited.
The two offices (which of course may have been rearranged since then)
were  different sizes: the one to the left (a gentle R turn out of the elevator)
benefitted from extra length as it was by neither staircase nor elevator.
The one to the right (or a sharp R turn out of the elevator) was shorter
and the one I started in.  I shared it for a long time with Claude Bizeau.
I think I wrote the 1989 memo there.
</p><p>

When I actually started work coding up the WWW code in September
1990, I moved into the larger office. That is where I had the NeXT machine,
as I remember it.
</p><p>
The second floor had pale grey linoleum, the first floor, where Peggie Rimmer had her office, had red lino; the third floor had pale yellow lino.  The ground floor had I think green lino.
Also on the second floor was the Documentation et Donnes, later Computing and Networking, HQ with David Williams at one point heading it up.

</p>

<h2><a name="Spelling">Spelling of WWW</a></h2>

<p><i>Q: How in fact do you spell World Wide Web?</i></p>

<p>A: It should be spelled as three separate words, so that its acronym is
three separate "W"s. There are no hyphens. Yes, I know that it has in some
places been spelled with a hyphen but the official way is without. Yes, I
know that "worldwide" is a word in the dictionary, but World Wide Web is
three words.</p>

<p>I use "Web" with a capital W to indicate that it is an abbreviation for
"World Wide Web". Hence, "What a tangled web he wove on his Web site!".</p>

<p>Often, WWW is written and read as W3, which is quicker to say. In
particular, the World Wide Web consortium is W3C, <b>never</b> WWWC.</p>

<p><i>Q: Why did you call it WWW?</i></p>

<p>A: Looking for a name for a global hypertext system, an essential element
I wanted to stress was its decentralized form allowing anything to link to
anything. This form is mathematically a graph, or web.  It was designed to
be global of course. (I had noticed that projects find it useful to have a
signature letter, as the Zebra project at CERN which started all its
variables with "Z".  In fact by the time I had decided on WWW, I had written
enough code using global variables starting with "HT" for hypertext that W
wasn't used for that.).  Alternatives I considered were "Mine of information"
("Moi", c'est un peu egoiste) and "The Information Mine ("Tim", even more
egocentric!), and "Information Mesh" (too like "Mess" though its ability to
describe a mess was a requirement!).  Karen Sollins at MIT now has a Mesh
project.</p>

<h2 id="etc">Why the //, #, etc?</h2>

<p>(2000/09) When I was designing the Web, I tried to use forms which people
would recognize from elsewhere.</p>

<p><em>Q: What is the history of the //?</em></p>

<p>A: I wanted the syntax of the URI to separate the bit which the web
browser has to know about (www.example.com) from the rest (the opaque string
which is blindly requested by the client from the server). Within the rest of
the URI, slashes (/) were the clear choice to separate parts of a
hierarchical system, and I wanted to be able to make a link without having to
know the name of the service (www.example.com) which was publishing the data.
The relative URI syntax is just unix pathname syntax reused without apology.
Anyone who had used unix would find it quite obvious. Then I needed an
extension to add the service name (hostname). In fact this was similar to the
problem the Apollo domain system had had when they created a network file
system. They had extended the filename syntax to allow
//computername/file/path/as/usual. So I just copied Apollo. Apollo was a
brand of unix workstation. (The Apollo folks, who invented domain and
Apollo's Remote procedure call system later I think went largely to
Microsoft, and rumor has it that much of Microsoft's RPC system was).</p>

<p>I have to say that now I regret that the syntax is so clumsy. I would like
http://www.example.com/foo/bar/baz to be just written
http:com/example/foo/bar/baz where the client would figure out that
www.example.com existed and was the server to contact. But it is too late
now. It turned out the shorthand "//www.example.com/foo/bar/baz" is rarely
used and so we could dispense with the "//".</p>

<p><em>Q: What about the "#"?</em></p>

<p>A: So, I needed something to separate the document (resource) from the
thing (fragment) within that document (or view of that document). In a snail
mail address in the US at least, it is common to use the number sign for an
apartment number or suite number within a building. So 12 Acacia Av #12 means
"The building at 12 Acacia Av, and then within that the unit known numbered
12". It seemed to be a natural character for the task. Now,
http://www.example.com/foo#bar means "Within resource
http://www.example.com/foo, the particular view of it known as bar".</p>

<p>It turned out later that in fact another hypertext project of some sort in
IBM, and Doug Englebart's NLS system had both independently use "#" for this
purpose. So there is something to choosing a character for the way people
think of it.</p>

<p>Ray Tomlinson, who invented email, tells a similar story of many years
earlier choosing the "@" for email - it made linguistic sense, as "at" was
the english preposition which typically connects a person and their address.
Hence ray@example.com and so on.</p>

<h2><a name="browser">What were the first WWW browsers?</a></h2>

<h4>WorldWideWeb</h4>

<p>A: I wrote in 1990 the first GUI browser, and called it
"<i>WorldWideWeb</i>". It ran on the NeXT computer. (I much later renamed the
application <i>Nexus</i> to avoid confusion between the first client and the
abstract space itself).</p>
<ul>
  <li><a
    href="../../../History/1994/WWW/Journals/CACM/screensnap2_24c.gif">Screenshot
    of WorldWideWeb</a> taken for a CACM article. <i>By this time it had
    color and inline images.The original 1990 version 1.0 would have looked
    identical except the book icon and the CERN icon would have been in
    separate windows - and the whole thing (like NeXT at the time) would have
    been in gray scale! The screen shot shows me making a link from "Atlas"
    in a list of experiments to some marked page. Look - no typing URLS, no
    &lt;angle brackets&gt;</i>!</li>
</ul>

<p>WorldWideWeb was a graphical point-and-click browser with mode-free
editing and link creation. It used style sheets, and multiple fonts, sizes,
and justification styles. It would download and display linked images,
diagrams, sounds animations and movies from anything in the large NeXTStep
standard repertoire.</p>

<p>(Some have asked for pointers to the source code. I have found an <a
href="/History/1991-WWW-NeXT/Implementation">archive directory</a> including
the <a
href="/History/1991-WWW-NeXT/Implementation/HyperText.m">HyperText.m</a>
module which was the basis for the hypertext functionality. This code, like
all my WWW code and later W3C has always been publicly available. This
archive has the code, though the libwww code modules are soft links which no
longer work. I haven't tried recompiling and linking it for years - so it is
probably of historical interest only)</p>
<ul>
  <li><a href="WorldWideWeb">More about the WorldWideWeb application</a>
    <a></a></li>
</ul>

<h4>Viola</h4>

<p>Pei Wei, student at U.C. Berkeley  (not Stanford, as incorrectly reported
earlier in a typo here), then wrote <em>ViolaWWW</em> for unix, based on his
<em>Viola</em> language; some students at Helsinki University of Technology
wrote "Erwise" for unix; and Tony Johnson of SLAC wrote "Midas" for unix. Pei
Wei has passed though history unnoticed among others whose work is not
mentioned in the histories, even though there was a year or so when Viola was
the best way to browse the web, was the engine driving the installation of
new servers, and the recommended browser at CERN for example.</p>

<p>Many people, incidentally, saw the Web for the first time by telnetting
into <tt>info.CERN.ch</tt>, which gave them a crude but functional line mode
interface. This was the second browser, a text-based browser, called the
"line mode" browser, or "www", and written by CERN student Nicola Pellow.
Many people imagined that that was all there was to the web. As one
journalist wrote "The Web is a way of finding information by typing numbers"
as links were numbered on the page. It was only in the community of people
who use NeXT computers that the Web could be seen as a point-and-click space
of hypertext.</p>

<h2><a name="Mosaic">Where does Mosaic fit in?</a></h2>

<p>A: As I understand it, Marc Andreessen at NCSA was shown ViolaWWW by a
colleague (David Thompson?) at NCSA. Marc downloaded Midas and tried it out.
He and Eric Bina then wrote their own browser for unix from scratch. Later,
several other folks at NCSA joined the team to port the idea to Mac and PC.
As they did, Tom Bruce at Cornell was writing "Cello" for the PC which came
out neck-and-neck with Mosaic on the PC.</p>

<p>Marc and Eric did a number of very important things. They made a browser
which was easy to install and use. They were the first one to get inline
images working - to that point browsers had had varieties of fonts and
colors, but pictures were displayed in separate windows. This made web pages
much sexier. Most importantly, Marc followed up his and Eric's coding with
very fast 24hr customer support, really addressing what it took to make the
app easy and natural to use, and trivial to install. Other apps had other
things going for them. Viola, for example, was more advanced in many ways,
with downloaded applets and animations way back then - very like HotJava was
later. But Mosaic was the easiest step onto the Web for a beginner, and so
was a critical element of the Web explosion.</p>

<p>Marc marketed Mosaic hard on the net, and NCSA hard elsewhere, trying hard
to brand the WWW and "Mosaic": "I saw it on Mosaic" etc. When Marc and Jim
Clark first started their start-up they first capitalized on the Mosaic
brand, but NCSA fought for it and won. When the "Netscape" brand appeared,
people realized the difference between the general "World Wide Web"concept
and specific software.</p>

<h2><a name="Influences">Start of the web: Influences</a></h2>

<p><i>Q. Have your first ideas in regard to the Web been influenced by any
specific work or published paper like Vanevar Bush´s "As we my think",
a publication of Doug Engelbart or Ted Nelson?</i></p>

<p>A. There wasn't a direct line. I did come across Ted's work while I was
working on the WWW -- after my "Enquire" program (1980) but during my reading
up on hypertext - probably between March 89 and September 1990. Not sure.. Of
course by 1989 there was hypertext as a common word, hypertext help
everywhere, so Ted's basic idea had been (sort of) implemented and I came
across it though many indirect routes.</p>

<p>I came across Ted's name first of course. Then I ordered "Literary
Machines", and I remember I was late paying him as he didn't take credit
cards or Swiss cheques - I paid him in August 1992, in cash, in person in
Sausolito.</p>

<p>I came across Vannevar Bush's article first in the documentation of
Digital Equipment Corporation's "Memex" project which became "Linkworks" for
VMS. I don't remember when that came out. Great paper.</p>

<p>Doug Englebart's work was the closest to the Web design -- when I saw that
the first time I was amazed. He had even used the hash sign as a delimiter
for the address within a document (I guess like me by analogy with an
apartment number). Doug's stuff is unbelievable. You have best to see the
video of him demonstrating it or his demo of a recent smalltalk
re-implementation. I saw the latter at the Edinburg Hypertext conference ECHT
94.</p>

<p><i>Q: Any people who personally helped you get to where you are
today?</i></p>

<p>A: I think the list would be too long to mention. Everyone who was fun and
encouraging, starting with my parents. On the professional side, here are a
few:</p>

<p>The Maths teacher at Emanuel, Frank Grundy, who conveyed the excitement of
the subject with a twinkle of his eye, could make numerical approximations in
his head faster than we could work it out longhand, and would throw in a
teaser question into his conversation to puzzle anyone who thought they had
figured the subject out. And Daffy Pennel who also couldn't contain his
excitement for Chemistry and anything related to it.</p>

<p>Unlike most people at Oxford I had one tutor for almost all the work. John
Moffat has a vary rare talent for being able to understand not only the
physics itself, but also my tangled misguided attempts at it, and then
showing me in my terms using my strange symbols and  vocabulary where I had
gone wrong. Many people can only explain the world from their own point of
view.</p>

<p>At CERN, I was recruited by Peggie Rimmer who taught me, among other
things, how to write a standards document.  Ben Segal was a mentor for my RPC
project at CERN, and was a sole evangelist for Internet protocols at CERN
long before they were adopted.  Ben gave me a lot of moral support in the
later WWW days too. A few years later, Mike Sendall was my boss who has a
great combination of human warmth and technical depth, and actually allowed
me unofficially to write the WWW programs. And then everyone across the
Internet who thought the Web was a neat idea and worked on it after hours
actually built it.</p>

<p></p>

<h2>On collaboration and automatability, Sept 95</h2>

<p>The web today is a medium for communication between people, using
computers as a largely invisible part of the infrastructure. One of the
long-term goals of the consortium is "Automatability", the ability for
computers to make some sense of the information and so help us in our task.
It has been the goal of mankind for so long that machines should help us in
more useful ways than they do at present, help us solve some of those human
problems. Maybe this is one of the many ideas (like hypertext) which the
web's great scale will allow to work where it did not achieve critical mass
on a small scale before. So there are groups looking at a web of knowledge
representation. It could be that some scientific field will be the first to
be sufficiently disciplined to input its data not just as cool hypertext, but
in a machine-readable form, allowing programs to wander the globe analyzing
and surmising.</p>

<p>The W3 Consortium started to address this goal with its recent workshop on
Collaboration on the Web. The ability of machines to process data on the web
for scientific purposes such as checking a scientist's private experimental
data against public databases, require databases to be available not only in
a raw machine-readable form, but also labelled in a machine readable way as
to what they are.</p>

<p>The knowledge engineering field has to learn how to be global, and the web
has to learn knowledge engineering, but in the end this might be a way in
which again the scientific field leads the world into something very
powerful, and a new paradigm shift.</p>

<h2>March 95</h2>

<p><em>Q: How did you come to arrive at the idea of WWW?</em></p>

<p>A: I arrived at the web because the "Enquire" (E not I) program -- short
for Enquire Within Upon Everything, named after a Victorian book of that name
full of all sorts of useful advice about anything -- was something I found
really useful for keeping track of all the random associations one comes
across in Real Life and brains are supposed to be so good at remembering but
sometimes mine wouldn't. It was very simple but could track those
associations which would sometimes develop into structure as ideas became
connected, and different projects become involved with each other.</p>

<p>I was using Enquire myself, and realized that (a) it would fulfill my
obligation to the world to describe what I was doing if everyone else could
get at the data, and (b) it would make it possible for me to check out the
other projects in the lab which I could chose to use or not if only their
designers had used Enquire and I had access.</p>

<p>Now, the first version of Enquire allowed you to make links between files
(on one file system) just as easily as between nodes within one file. (It
stored many nodes in one database file). The second version, a port from NORD
to PC then VMS, would not allow external links.</p>

<p>This proved to be a debilitating problem. To be constrained into database
enclosures was too boring, not powerful enough. The whole point about
hypertext was that (unlike most project management and documentation systems)
it could model a changing morass of relationships which characterized most
real environments I knew (and certainly CERN). Only allowing links within
distinct boxes killed that. One had to be able to jump from software
documentation to a list of people to a phone book to an organizational chart
to whatever .. as you can with the web today. The test rule was that if I
persuaded two other projects to use it, and they described their systems with
it, and then later at any point a module, person etc., in one project used
something from another project, that you would be able to add the link and
the two webs would become one with no global change -- no "flag day"
involving the merging of two databases into one, no scaling problems as the
number of connected things grew. Hence the W3 design.</p>

<p>The same lesson applies now to the webs of trust we will be building with
linked certificates.</p>

<p>So the requirement was for "external" links to be just as easy to make as
"internal" links. Which meant that links had to be one way.</p>

<p>(There was also a requirement that the web should be really easy to add
links to, but though that was true in the prototype we are only now starting
to see betas of good commercial web editors now.)</p>

<h2>June 94</h2>

<p>This was an interview in Internet world by Kris Herbst. His questions are
his (c) of course. Slightly edited.</p>
<pre> IW: What did you think of the first WWW'94 conference?<br> <br> TBL: Great! It had a unique atmosphere, as there were people from all<br> walks of life brought together by their excitement about the Web. As it<br> was the first one, they hadn't met before, so it was a bit unique. It was<br> very oversubscribed, as you know, so the next one will have to be a lot<br> bigger.<br> <br> IW: Can you tell us something about your early life, and how those<br> experiences might have influenced you later as you developed WWW?<br> <br> TBL: That's the first time I've been asked to trace WWW history back<br> that far! I was born in London, England. My parents met while<br> developing the Ferranti Mark I, the first computer sold commercially,<br> and I grew up playing with five-hole paper tape and building<br> computers out of cardboard boxes. Could that have been an influence?<br> Later on I studied physics as a kind of compromise between<br> mathematics and engineering. As it turned out, it wasn't that<br> compromise, but it was something special in its own right. Nevertheless,<br> afterward I went straight into the IT industry where more things<br> seemed to be happening. So I can't really call myself a physicist.<br> But physicists spend a lot of time trying to relate macroscopic behavior<br> of systems to microscopic laws, and that is the essence of the design of<br> scalable systems. So physics was probably an influence.<br> <br> IW: What led you to conceive the WWW?<br> <br> TBL: I dabbled with a number of programs representing information in<br> a brain-like way. Some of the earlier programs were too abstract and led<br> to hopelessly undebuggable tangles. One more practical program was a<br> hypertext notebook I made for my own personal use when I arrived at<br> CERN. I found I needed it just to keep track of the -- how shall I say --<br> flexible? creative? -- way new parts of the system, people and modules<br> were added on and connected together. The project I'd worked on just<br> before starting WWW was a real-time remote procedure call, so that<br> gave me some networking background. Image Computer Systems did a<br> lot of work with text processing and communications -- I was a director<br> before coming to CERN. <br> <br> IW: What elements in your background or character helped you to<br> conceive WWW as a way to keep track of what was happening at<br> CERN? <br> <br> TBL: Elements of character?! Anyone who has lost track of time when<br> using a computer knows the propensity to dream, the urge to make<br> dreams come true, and the tendency to miss lunch. The former two<br> probably helped. I think they are called Attention Deficiency Disorder<br> now. ;-)<br> <br> IW: Do you have some favorite Web sites for browsing?<br> <br> TBL: (Sigh) I wish I did, but I hardly spend any time browsing.<br> Historically, I appreciate the people who were first and showed others<br> how things could be -- Franz Hoesel's Vatican Library, of course, Steve<br> Putz's map server, lots more.<br> <br> IW: How do you feel about the fact that WWW promises to generate<br> large amounts of money for some persons?<br> <br> TBL: If it's good, people will want to buy it, and money is they way<br> they vote on what they want. I believe that system is the best one we<br> have, so if it's right, sure people are going to make money. People will<br> make money building software, selling information, and more<br> importantly doing all kinds of "real" business, which happens to work<br> much better because the Web is there to make their work easier.<br> The web is like paper.  It doesn't constrain what you use it for:<br> you have to be able to use it for all of the information flow of<br> normal life.<br> My priority is to see it develop and evolve in a<br> way which will hold us in good stead for a long future.<br> If I, and CERN, hadn't had that attitude,<br> there probably wouldn't be a web now.<br> <br> Now, if someone tries to monopolize the Web, for example pushes<br> proprietary variations on network protocols, then that would<br> make me unhappy.<br> </pre>

<h2>More obscure questions...</h2>

<h3>Rendition of links</h3>

<p><i>Q: I´m a student of visual communications and asked myself why links
are blue. I found some answers that might be, for example blue is a color of
learning, but I´m not sure what is right. Is there any reason, why links are
colored blue ?</i></p>

<p>A: There is no reason why one should use color, or blue, to signify links:
it is just a default.  I think the first WWW client (WorldWideWeb I wrote for
the NeXT) used just underline to represent  link, as it was a spare emphasis
form which isn't used much in real documents. Blue came in as browsers went
color - I don't remember which was the first to use blue. You can change the
defaults in most browsers, and certainly in HTML documents, and of course
with <a href="../../StyleSheets/Overview.html">CSS</a> style sheets. There
are many examples of style sheets which use different colors.</p>

<p>My guess is that blue is the darkest color and so threatens the legibility
least.  I used green whenever I could in the early WWW design, for nature and
because it is supposed to be relaxing. Robert Cailliau made the WWW icon in
many colors but chose green as he had always seen W in his head as green.</p>

<p>One of the nicest link renditions was Dave Raggett's "Arena" browser which
had a textured parchment background and embossed out the words of the link
with a square apparently raised area.</p>

<p></p>

<h2><a name="your">Why is your email address on my screen?</a></h2>

<p>Q: I get on my connection screen something like</p>
<pre>Keyword         Decimal    Description                     References<br> -------         -------    -----------                     ---------- <br>http             80/tcp    World Wide Web HTTP<br>http             80/udp    World Wide Web HTTP <br>www              80/tcp    World Wide Web HTTP<br>www              80/udp    World Wide Web HTTP www-http<br>80/tcp    World Wide Web HTTP www-http<br>80/udp    World Wide Web HTTP #   Tim Berners-Lee &lt;timbl@W3.org&gt;</pre>

<p>Who are you and why are you there?</p>

<p>A: Your screen is showing you a list of services on the Internet. Service
80, for example, is HTTP, the protocol which allows a web server and client
to talk to each other. A web client opens a TCP connection to a port number
80 on the server. It just happened that I designed HTTP and asked for the
port number to be assigned for computers everywhere to be able to use for the
web. So someone left my name and email against the entry at the time for the
record. The hash (#) tells your computer not to take any notice of that line.
It is just historical. I am not hacking your computer!</p>

<p></p>

<h2><a name="tell">Can you tell me more about your personal li</a>fe?</h2>

<p>A: No, I can't - sorry. I like to keep work and personal life separate.
What is on the web on this page and my home page is all there is. Please do
not email me asking for more information for school projects, etc. Thank you
for your understanding.</p>

<p></p>
<hr>
<address>
  <a href="/TBL_Disclaimer.html">TimBL</a>
</address>
</body>
</html>