Transcript What is the Internet?

Chapter 7
E-Commerce
The Internet,
Intranets, and Extranets
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What is the Internet?
The Internet connects millions of servers.
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What is the Internet?
• Growth of the Internet
– Number of servers
• From a few hundred in 1991,
to more than 115,000,000 by
mid-2000
– Number of users
• More than 200 million;
increased rapidly during
1999
World growth of the Internet
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Internet Domains
• A domain name is assigned to each IP address.
• Domain names are registered by one of a group of
companies authorized to assign unique names.
The number of Internet domain servers continues to grow
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The World Wide Web
• Hypertext transfer protocol (HTTP)
– Allows shared communication of text, full-color
graphics, tables, forms, video, and animation
• Hypertext Mark-Up Language (HTML)
– Code for tagging Web files for display
• Browsers
– Software to access the Web
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Creating Web Files
– HTML: System of standardized “tags” that format elements
text, graphics, and animation
– Web page editors: Translate well-known or intuitive
commands into code
– Java, ActiveX, and XML: Web scripting languages
– Frames: Sections of a Web page that let a browser explore a site
in different ways on the same page
– Cookies: Special file a Web site saves on the surfer’s hard disk
so the site can remember something about the surfer later
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Intranets and Extranets
– Intranet
• A within-organization computer network
that uses Internet technologies to
communicate
– Extranet
• Uses Internet technologies to facilitate
communication and trade between an
organization and its business partners,
such as suppliers
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Intranets and Extranets
intranet, an extranet, and
the Internet from an
individual user’s
perspective
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Establishing a Web Site
• Site Name
• Points of Presence
• Line Capacity
• Site Maintenance
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Business on the Internet
• Business-to-Business Trading
• Electronic Data Interchange
• Exchanges and Auctions
– E-catalogs
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Business-to-Consumer Trading
Advertising
•Portals
•Free Internet
applications
E-Shopping
•E-Payment
•Auctions and reverse auctions
•Selling content
•Selling software
•Data push
•Stock trading for all
Web-shopping benefits
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Business Considerations
• Web Costs
– The least costly sites are those constructed
simply to showcase the company’s products
or services.
– The most expensive sites are those designed
to enable electronic commerce.
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Risks to Organizations
– Computer viruses
– Interception of passwords and codes by an
unauthorized hacker
– Interception of charge account numbers
– Illegal or socially objectionable use of a site
– Potential misrepresentation
• Risks to Consumers
– Eavesdropping and interception
– Misrepresentation
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