1. THE INTERNET, THE WEB, AND ELECTRONIC COMMERCE2
CHAPTER
THE INTERNET, THE WEB, AND ELECTRONIC COMMERCE
Ask the students why the Internet is often referred to as the Information Superhighway
Competent end users need to be aware of the resources available on the Internet and the Web
Ask students to list the resources they use on the Web

2. Competencies Discuss the origins of the Internet and the Web
Describe how to access the Web
Discuss Internet communications
Describe Internet search tools
Discuss electronic commerce
Discuss Web utilities
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3. The Internet and the Web
Large network that connects smaller networks globally
Launched in 1969
National computer network
US funded project called ARPANET
World Wide Web introduced in 1992 at CERN
Most developed network system currently in use; connects people all over the world
Originally started in 1969 when US funded a research project (ARPANET— Advanced Research Project Agency Network)
CERN – Center for European Nuclear Research
World Wide Web (Web) is a part of the Internet – not the Internet; introduced in 1992 by consortium in Switzerland.
Originally started as research and text-based network to exchange research ideas from university to university
Developed into a network of networks
One of the most powerful tools of the 21st century
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4. Common Internet Uses Communicating Shopping Searching Entertainment
Exchange
Discussion Groups
Shopping
Searching
Entertainment
Education or e-learning
Most common Internet applications
Communicating - sending and discussion group participation
You can chat live with others
Ask students what chat software they use
Shopping – fastest-growing applications
Searching - using virtual libraries
Entertainment – music downloads; integration of TV and PC
Education or e-learning
You can take classes on almost any subject
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5. Access Providers Common way to access the Internet
Commercial Internet Service Providers (ISP)
National
Regional
Wireless service providers
The common way to access the Internet is through a provider or host computer
Providers - already connected to the Internet -- furnish a pathway for other users
Typical providers include:
Colleges and universities – usually “free”
Internet service providers (ISP) can be local (regional) or national
Ask students to identify various ISPs used in their environment
Types of providers
National – like AOL
Regional – smaller service area
Wireless
No telephone lines used
Provide connection through wireless modems
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6. Browser Basics Programs that provide access to Web resources
Allow you to surf the Internet
Two well-known browsers
Netscape Navigator
Microsoft Internet Explorer
Address or location of the resource must be specified
URL
Browsers allow you to search or surf the Web
Navigate, search for information and communicate using the Web
Use URL (uniform resource locator) to connect to other resources
Two parts to URL: protocol, rules for exchanging data between computers (usually second is domain name or server where resource is located (
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7. URLs Uniform Resource Locator Locates Web sites
All URLs have at least two parts
Protocol
Domain name
Locates Web sites
Browser is software that allows users to navigate the Web and read the multimedia formatted pages
Connect to Web sites using URL addresses (uniform resource locator)
Document is sent to computer usually coded in HTML (Hypertext Markup Language) or some variation
Interprets the HTML codes displaying page
May contain
Hyperlinks -- allow users to quickly connect to other pages or Web sites
Graphics
Text
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8. More on Browsers Browsers interpret HTML commands
Hypertext Markup Language
Contained in a document
Display document as a Web page
Web pages contain links to programs called applets
These are special programs written in a programming language called Java
These programs can be quickly downloaded and run by most browsers
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9. Communication Most popular Internet activity Types of communication
Address
Discussion Groups
Communications is the most popular Internet activity
Types of communications:
or electronic mail
Transmission of electronic messages over the Internet
Has three basic parts: header, message, and signature
Header
Address
Subject – very important to include this in a message
Attachments
Spam – unsolicited
Distraction, Nuisance
Discussion groups
Participate in forums and debates
Includes mailing lists, newsgroups, chat groups, and instant messaging
Mailing lists – message is sent to a list of addresses
Newsgroups – uses a special network called UseNet
Chat - allows direct, live communications
IRC – Internet Relay Chat is a very popular chat service
IM – instant messaging, can send messages back and forth in real time
Lurking - this is a technique you can use before you participate in a discussion group
You observe and don't respond until you feel more comfortable with the group
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10. Discussion Group Terms
Someone who has comprehensive knowledge about a subject
Wizard
A sequence of ongoing messages on the same subject
Thread
Someone who aids new users by answering questions
Saint
Request for discussion
RFD
Reading news but not joining in to contribute
Lurking
Insulting, putting down, or attacking
Flaming
Description
Term
Ask students to give examples of the each of the above discussion group terms
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11. Search Tools Search engines Metasearch engines
Specialized search engines
Specialized programs that assist you in locating information on the Web and the Internet
Search services ( providers) help you locate information; they maintain the database that helps you get where you want
Special programs called agents, spiders, or bots, continually look for information and updated services
Search engines – assist you to locate information
Examples
Alta Vista
Excite
Google
Teoma
Yahoo!
Use keyword search; know “rules” i.e. use + or quotes to look for phrases rather than individual words
Use directory search – list of categories or topics; also known as index search
Metasearch engines – programs that automatically submit your search request to several search engines simultaneously
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12. Electronic Commerce Also known as e-commerce
Buying and selling of goods over the Internet
Business-to-consumer (B2C)
Consumer-to-consumer (C2C)
Business-to-business (B2B)
Electronic commerce is buying and selling over the Internet
Three basic types of electronic commerce: business to consumer; consumer to consumer; and business to business
Web storefronts are virtual stores for B2C commerce; just like being in the store except you do it from home
Web auctions growing in popularity; similar to traditional auctions – no one sees each other
Auction house sites – merchandise presented for auction
Person-person auction sites – more like flea markets; forum for buyers and sellers to gather
Electronic payment -- easy, secure payment method
Checks -- slowest and least convenient
Credit cards -- easier to work with, somewhat vulnerable to theft
Electronic cash or e-cash -- also known as cybercash and digital cash
Purchased from third party (usually a special bank); more secure than credit cards
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13. Web Storefronts Virtual stores Web storefront creation packages
Also called commerce servers
Help businesses create virtual stores
Allow visitors to register, browse, and make purchase
Virtual stores for B2C electronic commerce
Shoppers visit stores on the Web to inspect merchandise and make purchases
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14. Web Auctions Consumer-to-consumer e-commerce (C2C)
Similar to traditional auctions
Types
Auction house sites
Person-to-person auction sites
Similar to Web traditional auctions
Buyers and sellers seldom meet face-to-face
Ask the students if they have ever used E-bay
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15. Security Payment methods must be fast, reliable, and secure
Three basic options
Checks
Credit card
Electronic cash
E-cash
Cybercash
Digital cash
A challenge is the payment for goods
Should be reliable, secure, and fast
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16. Web Utilities Telnet FTP Plug-ins Filters Plug-in Source
Acrobat Reader
Media Player
QuickTime
RealPlayer
Shockwave
Telnet runs programs on remote computers; connect to another computer and run programs on it
FTP transfers files; file transfer protocol; Internet service for file transfer
Downloading - transmitting files to your computer
Uploading - transmitting files from your computer to another computer
Plug-ins -- automatically loaded by and work with your browser; Acrobat Reader; Cosmos from Silicon Graphics (3-d displays); Media Player; QuickTime from Apple; RealPlayer; and Shockwave from Macromedia
Helper applications are independent programs executed from your browser designed to maximize your efficiency
Off-line browsers – Off-line search utilities – auto submit your search information to variety of engines and create an index for your review; auto save HTML documents to your hard drive
Information pushers – User selects topic areas or channels of interest
Program retrieves relevant information from the Web and stores it for viewing at the convenience of the user
Filters – block access to specified sites; set time limits
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17. A Look to the Future Internet2
A high bandwidth project for media-intensive files
Collaboration of universities, the government, and private industry
100 times faster than the Internet
Not a separate Internet
Internet2 is a collaborative project between an assembly of universities, the government, and private resource groups
Faster downloads and less waiting time are some of the advantages
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18. Discussion Questions (Page 1 of 2)
Discuss the uses of the Internet. Which activities have you participated in? Which one do you think is the most popular?
Explain the differences between the three types of providers.
What are the basic elements of an message?
Have students turn to the end of Chapter 2 in their textbooks to view the same “Open-Ended” questions/statements
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19. Discussion Questions (Page 2 of 2)
What are the types of discussion groups? Describe any groups you participate in.
Describe the different types of search engines. Give an example of the type of search each engine is best for.
Have students turn to the end of Chapter 2 in their textbooks to view the same “Open-Ended” questions/statements
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