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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
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?