1、Chapter 2,The Internet, The Web, and Electronic Commerce,2-2,Competencies (1 of 2),Discuss the origins of the Internet and the Web Describe how to access the Web using providers and browsers Discuss Internet communications, including e-mail, instant messaging, and social networking,Page 28,2-3,Compe
2、tencies (2 of 2),Describe search tools, including search engines and metasearch engines Discuss electronic commerce, including B2C, C2C, B2B, and security Describe Web utilities: Web-based applications, FTP, plug-ins, and filters,Page 28,2-4,Introduction,The Internet is often referred to as the Info
3、rmation Superhighway because it connects millions of people across the globe. Unlike a typical highway, the Internet moves idea and information. The Web provides an easy-to-use, intuitive interface to connect to the Internet and is used by millions of people every day.,Page 29,2-5,The Internet and t
4、he Web,Large network that connects smaller networks globally The Internet was Launched in 1969 National computer network US funded project called ARPANET World Wide Web or WWW was introduced in 1992 at CERN,Page 30,2-6,Common Internet Uses,Communicating Exchange e-mail Discussion Groups Online shopp
5、ing Searching Virtual Libraries Entertainment Education or e-learning,Page 30,2-7,Internet Access Providers,Common way to access the Internet Commercial Internet Service Providers (ISP) National Service Providers Regional Service Provider Wireless service providers,Page 31,2-8,Browsers,Programs that
6、 provide access to Web resources Allow you to surf the Internet Three well-known browsers Mozilla Firefox Netscape Communications Microsoft Internet Explorer Address or location of the resource must be specified URL,Page 31,2-9,URLs,Uniform Resource Locators All URLs have at least two parts Protocol
7、 Domain name Locates Web sites,Page 32,2-10,More on Browsers,Browsers interpret HTML commands Hypertext Markup Language Contained in a document Display document as a Web page,Page 33,2-11,Communication,Most popular Internet activity Types of communication Electronic Mail (E-Mail) E-Mail Address Spam
8、 Instant Messaging Social Networking,Page 33,2-12,E-Mail,Transmission of electronic messages over the Internet Basic parts Header Address Subject Attachment Message Signature Line,Page 34,Return,2-13,E-Mail Address Example,Page 34,Return,2-14,Spam,Page 35,Junk and/or unwanted Email Computer viruses
9、or destructive programs are often attached to unsolicited email CAN-SPAM Act Spam blockers can identify and control spam Spam blockers are also referred to as: Junk mail filters Anti-spam programs,Return,2-15,Instant Messaging,Page 35,Is an extension of email that provides direct, live communication
10、 between two or more people Instant messaging programs also include: Video conferencing features File sharing Remote assistance Most widely used instant messaging services: AOLs Instant Messenger Microsofts MSN Messenger Yahoo Messenger QQ,Return,2-16,Social Networking,Page 36,One of the fastest gro
11、wing uses of the Internet Three basic categories: Reunite Friend of a friend Common interest,2-17,Search Tools,Search engines Metasearch engines Specialized search engines Tips Start with the right approach Be as precise as possible Use multiple words Use Boolean operators Check your spelling Keep m
12、oving,Page 37,2-18,Search Engines,Specialized programs to assist in locating information Types of searches Keyword search Directory search,Page 40,Return,2-19,Metasearch Engines,Page 41,Return,2-20,Specialized Search Engines,Page 42,Return,2-21,Content Evaluation,Not all information on the web is ac
13、curate Ways to evaluate accuracy of Web information include: Authority(权威) Accuracy(正确性) Objectivity(客观性) Currency(通用性),Page 42,2-22,Electronic Commerce,Also known as e-commerce Buying and selling of goods over the Internet Business-to-consumer (B2C) Consumer-to-consumer (C2C) Web auctions Business-
14、to-business (B2B),Page 42,2-23,Business to Business,Involves the sale of a product or service from one business to another (B2B) Primarily a manufacturer supplier relationship,Page 43,2-24,Business to Consumer,Fastest growing type of e-commerce Three most widely used B2C applications: Online banking
15、 Financial trading Shopping,Page 43,Return,2-25,Consumer to Consumer Web Auctions,Consumer-to-consumer e-commerce (C2C) Similar to traditional auctions Types Auction house sites Person-to-person auction sites,Page 44,2-26,Security,Payment methods must be fast, reliable, and secure Three basic option
16、s Checks Credit card Digital cash,Page 44,2-27,Web Utilities,Specialized utility programs that make using the internet & web safer and easier Web-based applications FTP Plug-Ins Filters Internet Security Suites,Page 46,2-28,Plug-Ins,Page 48,Return,2-29,Filters,Page 47,Return,2-30,Internet Security S
17、uites,Collection of utility programs designed to maintain your security and privacy while on the web McAfee Norton,Page 48,2-31,Careers In IT - Webmasters,Develop & maintain websites Back-up of the company website, updating resources, and development of new resources Work with the marketing departme
18、nt to increase the site traffic flow,Page 49,2-32,A Look to the Future Homes of Tomorrow,“Smart” appliances in homes will have their own Web page Refrigerators will be able to manage their inventory and automatically order to re-supply Internet cameras, wireless technologies, & high-speed internet w
19、ill allow you to virtually monitor your home while on travel Downsides?,Page 50,2-33,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 e-mail message?,Page 57,Discussion Questions (Page 1 of 2),2-34,What is social networking? Describe the three types of social networking sites.Describe the different types of search engines. Give an example of the type of search each engine is best for.,Page 57,Discussion Questions (Page 2 of 2),
