1. 1 The Internet Structure & evolution Messaging Addressing E-Commerce Intranets & Internets

2. 2 Background  Department of Defense  Research vehicle  Arcane commands  Peer to peer Harvard USC U of M MIT Duke Northeastern

3. 3 What Makes the Web Special?  Graphical Interface  HTTP –Client server  Addressing  Commercialization *World Wide Web WWW*

4. 4 Linked Networks MCI* Backbone AT&T** Backbone MAE* East MCI Vienna, VA Sprint Backbone MAE* West MCI San Jose Metropolitan Area Exchanges: Sites with routers where ISPs exchange traffic. Also called network access points, NAPs. Carriers monitor their Networks at NOCs, Network Operations Centers Sprint NAP Pennsauken NJ * MCI to be purchased by Verizon Communications ** AT&T to be purchased by SBC

5. 5 Figure 7.1 Web server, application server, content management software, and content database. (Courtesy of Ektron, Inc.) Keeping up With Changes on Corporate Web Sites

6. 6 Internet Connections to a Cable Multiple System Operator (MSO)

7. 7 E-Mail, Chats & Instant Messaging HTML formatted email Impact of attachments IM & presence for businesses Teenagers & chat Multi-media messaging

8. 8 Figure 7.3 Links between hosting companies and the Internet.

9. 9 BLOGs, Craig’s List & Really Simple Syndication Web logs Impact on news media New distribution –Push Vs. pull –Pod casting via really simple syndication (RSS) Will newspapers disappear?

10. 10 Figure 7.4 Distance learning company hosting applications and course material for schools. Figure courtesy Blackboard, Inc.

11. 11 Phishing and Identity Theft Are our identities safe? Which of our organizations’ identities have been forged by phishers? How can we protect our identities?

12. 12 E-Commerce Who shops online? What sells? Pornography Gambling Retail products Ads on search sites  Privacy  Cookies  Surveys  Database sales

13. 13 Summing Up  Describe the structure of the Internet  How has the Internet changed the way  we do business?  We live?  What are the biggest opportunities for e- commerce?  Who are the major competitors & future winners?  How will the Internet change life for the next generation?