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Introduction to the Internet and World Wide Web Design

Introduction to the Internet and World Wide Web Design. Introduction. This is simple overview of how Internet and the World Wide Web (WWW) works. History of the internet.

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Introduction to the Internet and World Wide Web Design

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  1. Introduction to the Internet and World Wide Web Design

  2. Introduction • This is simple overview of how Internet and the World Wide Web (WWW) works.

  3. History of the internet • Late 1960s, ARPA (Advanced Research Projects Agency). Supported by Department of Defense. To share informations within one university. • ARPANET. To connect USA universities and organizations to share info and communicate. TCP Protocol. • Internet: To connect organizations all over the world. IP Protocol and other protocols added.

  4. History of the WWW • World Wide Web enables user to see multimedia based document. • 1993, Mosaic Browser. It leads to Netscape Navigator. • WWW Consortium(W3C) Objective: To make web accessible regardless of lang. and culture. • W3C recommendations and standards. (XHTML, CSS,XML)

  5. Web Historical Events • C and C++ PLs. • Java: Web Programming Lang. (Interactive) • JVM: Solved partially Browser Portability Problem. • Java Technology assists in Network Communication. • .NET: Code reusability and multi-lang. applications. • Dynamic HTML: Executed on client. Live pages. • E-Commerce.

  6. Basic concepts • Each machine connected to the Internet has a unique IP address and port number. • Using “ping” command we found the following • www.google.com 66.102.9.99:80 • www.yahoo.com 216.109.118.77:80 • www.just.edu.jo 10.242.1.51:80 • webmail.just.edu.jo 10.242.1.52:80 • Your machine is 127.0.0.1 it is unique within itself!

  7. Domain Name Server (DNS) • DNS match each domain name with its IP address

  8. www.google.com 66.102.9.99:80 Local DNS (at JUST) National DNS (Amman) Root DNS (USA, Europe, Asia) Total 13 DNS worldwide

  9. Requesting Information HUB 1 HUB 2 HUB 3 JUST Google HUB 4 HUB 5 HUB 6 HUB 7 HUB 8 HUB 9

  10. Returning information HUB 1 HUB 2 HUB 3 JUST Google HUB 4 HUB 5 HUB 6 HUB 7 HUB 8 HUB 9

  11. Important Keywords • DSL • NIC • ISP • Bandwidth • ISDN • Dial Up Connection • URL • HTTP • Search Engines • FTP • SMTP • Web Server • Upload

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