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Welcome To The Www

Welcome To The Www



About the World Wide Web. In brief, how it was concieved, how it began, where do we stand, how it will shape in coming years, and a conclusion. ...

About the World Wide Web. In brief, how it was concieved, how it began, where do we stand, how it will shape in coming years, and a conclusion.

Credit to the original creators of the content (and taker of the images) whose names have escaped my memory. :-(



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    Welcome To The Www Welcome To The Www Presentation Transcript

    • Welcome to theWorld Wide Web
      08Mx22, II MCA
    • Intuitive Definition
      World Wide Web: A way of thinking about information storage and retrieval
      Web: Software that runs on some of the computers connected to each other through the Internet
      Two important innovations played key roles:
      Graphical user interfaces (GUIs)
    • Origins of HyperText
      1945: Vannevar Bush speculated engineers would eventually build a machine ( Memex ) that would store a person’s books, records, letters, and research results on microfilm. Mechanical aids would help retrieve
      1960: Ted Nelson described similar system where text on one page links to text on other pages. He called it hypertext
      1960s: Douglas Engelbart created first experimental hypertext system on one of the large computers
    • Ted Nelson And D Engelbart
    • The Beginning
      1990-91 – Tim Berners-Lee and Robert Cailliau develop HTML in Switzerland; first concept of the “World Wide Web” – a set of linked HTML documents accessed through the Internet
      1992-93 – NCSA in Illinois develops Mosaic; first widely used Web browser
      1994 – Marc Andreesen and Jim Clark found Netscape, Inc. and develop first commercial Web browser: Netscape Navigator
    • Sir Tim Berners Lee and Marc Andreesen
    • The Adolescent Internet
      1990s saw a boom in personal computing - more home and office computers than ever
      General public starts to use the Internet, especially the World Wide Web and email, in the mid 1990s
      Internet moves from government-run to privately-run
      WWW becomes a commercial vehicle in the late 1990s
    • How Did We Get Here?
      Web 1.0: Hyperlinked information, static content
      Web 2.0: Dynamic information, social content
      Web 3.0: Organized information, content plus meaning
    • The Age of Innovation
      Since 1995, the Web has become nearly ubiquitous. In Sweden, Access to internet is now a Fundamental Right.
      “ Web 2.0” technologies began appearing in this decade
      Before Web 2.0 – anyone could post to the web… but you had to know HTML, or use web editing software, or hire some geek to do it for you!
    • The Age of Monetization
      Web 2.0 technologies freed content – anyone can contribute; barriers are very low
      First came blogs and wikis, then social networking sites
      Rush to capitalize on Web 2.0 in last 2 years – MySpace bought by News Corp.; Microsoft buys a stake in Facebook
    • What’s the Difference?
      Web 1.0 Web 2.0
      Reading Writing
      Companies Communities
      Surfing RSS
      Owning Sharing
      Web Forms Web Applications
      Dialup Broadband
      Web Pages Blogs
      AOL, eBay, IE, Yahoo! Firefx, Flickr, Digg, Google
    • The New Dawn
      Since its inception, the Web has been an unorganized mess – organizing it in a meaningful way is a worthy goal
      Semantic metadata would greatly improve searching (but search is already better than it was in the ‘90s)
      Semantic Web could allow programmers to create software that acts autonomously – software that “understands” Web content and does exactly what you want/need
    • Where Do We Stand
      So far, only a handful of start-ups are working on Semantic Web systems – there has been no “killer app” that has led to widespread adoption
      Investors are always looking for the next hot tech, but so far the Semantic Web hasn’t generated anything more than curiosity
      Web 2.0 technologies have caught on, though – one of the hallmarks of Web 2.0 is tagging, or the ability for anyone to assign descriptive keywords to things on the Web
    • The Social Semantic Web
      Can Web 2.0 tags represent some ordered collective intelligence? Are Web 2.0 tags metadata? More importantly, are tags semantic metadata?
      Think of it as the Wikipedia model instead of the Britannica model
      “When a substantial number of users tag content for a long period of time, stable tags start appearing in the resulting folksonomy”
    • The Possibilities are Endless…
      Important to remember - the Web has become a commercial enterprise
      Distinction between bottom up (generative) technologies and top down (sterile) technologies – the Internet/Web is the ultimate generative technology – a “collective effort”
      Where is the balance between openness and security if the generative technology of the Web is just as useful to the bad guys as it is to businesses and everyday users?
    • As fear and mistrust take root, tech companies are beginning to move back to sterile technologies– even as user-generated content (and user-generated metadata, in the form of tags) revolutionize the Web
      These include nonprogrammable devices such as TiVo, BlackBerry, iPod, mobile phones, and game consoles – vendors can change them, but users can’t
      Tech Gaints seem to be moving in the direction of vendors approving new software applications written for their products
      The Capitalist Factor
    • References
      Berners-Lee, T., & Fischetti, M. (1999). Weaving the Web: the original design and ultimate destiny of the World Wide Web by its inventor .
      Berners-Lee, T., Hendler, J., & Lassila, O. (2001, May). The Semantic Web. Scientific American, 284 (5), 34-43.
      Gillies, J., & Cailliau, R. (2000). How the Web was born: the story of the World Wide Web.
      Free Press Action Fund. (2008). Save the Internet: fighting for Internet freedom. Retrieved June 3, 2008, from http://www.savetheinternet.com
    • Thank You