Chapter2.ppt

Chapter 2 The Internet, The Web, and Electronic Commerce Competencies (1 of 2) Discuss the origins of the Internet（ 因特网）and the Web（万维网） Describe providers and browsers （浏览器）that access the Web Discuss Internet communications, including e-mail, instant messaging（即时消息）, and social networking Competencies (2 of 2) Describe search tools（搜素工具）, including search engines （有哪些信誉好的足球投注网站引擎） Discuss electronic commerce（电子商务）, including B2C, C2C, B2B, and security(安全) Describe Web utilities: plug-ins（插件）, and filters Introduction The Internet is often referred to as the Information 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. The Internet and the Web Large network that connects smaller networks globally. The Internet was launched in 1969 National computer network US funded project called ARPANET（阿帕，美国高级研究计划署（Advanced Research Project Agency） web World Wide Web or WWW It was introduced in 1992 at CERN (Center European Nuclear Research ）欧洲核子研究所 The web made it possible to include a sound or grahpic and provide multimedia inerface （多媒体界面）to internet Common Internet Uses Communicating Exchange e-mail（电子邮件） Discussion Groups Online shopping（网络购物） Searching（有哪些信誉好的足球投注网站） Entertainment(娱乐) Education or e-learning Internet Access Providers Commercial Internet Service Providers (ISP)互联网服务提供商 中国三大基础运营商： 　　中国电信：拨号上网、ADSL等 　　中国移动：GPRS及EDGE无线上网、TD-SCDMA无线上网，一少部分FTTx 　　中国联通：GPRS,W-CDMA无线上网、 拨号上网、ADSL、FTTx Browsers Programs that provide access to Web resources Allow you to surf （上网）the Internet Three well-known browsers（浏览器） Mozilla Firefox Netscape Communications Microsoft Internet Explorer Address or location of the resource must be specified URL（ Uniform / Universal Resource Locator ） 统一资源定位符，网页地址 URLs Uniform Resource Locators All URLs have at least two parts Pr