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1
The Internet
Structure & evolution
Messaging
Addressing
E-Commerce
Intranets & Internets
2
Background
Department of Defense Research vehicle Arcane commands Peer to peer
Harvard
USC
U of M
MITDuke
Northeastern
3
What Makes the Web Special?
Graphical InterfaceHTTP
– Client server
Addressing Commercialization
*World Wide Web
WWW*
4
Linked Networks
MCI* Backbone AT&T** Backbone
MAE* EastMCI
Vienna, VA
Sprint Backbone
MAE* WestMCI
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 NAPPennsauken NJ
* MCI to be purchased by Verizon Communications** AT&T to be purchased by SBC
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Figure 7.1Web server, application server, content management software, and content database.(Courtesy of Ektron, Inc.)
Keeping up With Changes on Corporate Web Sites
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Internet Connections to a Cable Multiple System Operator (MSO)
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E-Mail, Chats & Instant Messaging
• HTML formatted email
• Impact of attachments• IM & presence for
businesses• Teenagers & chat• Multi-media
messaging
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Figure 7.3Links between hosting companies and the Internet.
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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
Figure 7.4Distance learning company hosting applications and course material for schools.Figure courtesy Blackboard, Inc.
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Phishing and Identity Theft
• Are our identities safe?
• Which of our organizations’ identities have been forged by phishers?
• How can we protect our identities?
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E-Commerce
Who shops online?What sells?
Pornography Gambling Retail products Ads on search sites
Privacy Cookies Surveys Database sales
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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?