Transcript Chapter 2

Chapter 2
The Internet, The Web, and
Electronic Commerce
College of Computer and Information Science
Key Words & Terms
• address: 地址
• Advance Research Project
Agency Network
(ARPANET): 高级研究项目
代理网络
• applets: Java程序
• attachment: 附件
• auction house site: 拍卖网
站
• bot: 代理程序
• browser: 浏览器
• buddy: 好友
• business-to-business (B2B):
商家对商家
• business-to-consumer (B2C):
商家对消费者
• cable: 电缆
• carder: 信用卡盗用者
• Center for European Nuclear
Research (CERN): 欧洲核能
源研究中心
• computer virus: 计算机病毒
• consumer-to-consumer(C2C):
消费者对消费者
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Key Words & Terms
• dial-up: 拨号
• digital cash: 电子货币
• directory search: 目录搜
索
• domain name: 域名
• downloading: 下载
• DSL: 美国网络公司
• e-commerce:电子商务
• e-learning: 网络学习
• electronic commerce: 电
子商务
• electronic mail: 电子邮
件
• e-mail: 电子邮件
• file transfer protocol
(FTP): 文件传输协议
• filter: 过滤器
• friend: 好友
• header: 邮件头
• hit: 点击
• Hyperlink: 超文本链接
• Hypertext Markup
Language (HTML): 超文
本链接标记语言
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Key Words & Terms
• instant messaging (IM):
即时消息
• Internet: 互联网
• Internet security suite: 网
络安全包
• Internet service provider
(ISP): 网络服务供应商
• Java: 一种高级语言
• keyword search: 关键词搜
索
• link: 链接
• location: 位置（地址）
• message: 消息
• metasearch engine: 原搜
索引擎
• national service provider:
国家网络服务中心
• online: 在线
• online banking: 网上银行
• online stock trading: 网上
股票交易
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Key Words & Terms
• person-to-person
auction site: 个人对个
人拍卖网站
• plug-in: 插件
• protocol: 协议
• search engine: 搜索引擎
• search service: 搜索服
务
• signature line: 落款
• social networking: 社会
网络
• spam: 垃圾邮件
• spam blocker:垃圾邮件
拦截器
• specialized search
engine: 专用搜索引擎
• spider: 代理程序
• subject: 主题
• surf: （网上）冲浪
• top-level domain (TLD):
顶层域名
• Uniform resource
locator (URL): 统一资源
定位
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Key Words & Terms
• universal instant
messenger: 通用即时消息
软件
• uploading: 上载
• Web: 万维网
• Web auction: 网络拍卖
• Web-based application:
Web应用
• Web-based service: Web
服务
• Webmaster: 网站管理员
• Web page: 网页
• Web utility: 网络工具
• wireless modem: 无线
modem
• wireless service provider:
无线网络服务中心
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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
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Competencies (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
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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.
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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
• World Wide Web or WWW was introduced
in 1992 at CERN
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Common Internet Uses
• Communicating
– Exchange e-mail
– Discussion Groups
• Online shopping
• Searching
– Virtual Libraries
• Entertainment
• Education or e-learning
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Internet Access Providers
• Common way to access the Internet
• Commercial Internet Service Providers (ISP)
– National Service Providers
– Regional Service Provider
– Wireless service
providers
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Browsers
• Programs that 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
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URLs
• Uniform Resource Locators
– All URLs have at least two parts
• Protocol
• Domain name
• Locates Web sites
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More on Browsers
• Browsers interpret HTML commands
– Hypertext Markup Language
– Contained in a document
• Display document as a Web page
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Communication
• Most popular Internet activity
• Types of communication
– Electronic Mail (E-Mail)
• E-Mail Address
• Spam
– Instant Messaging
– Social Networking
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Spam
• Junk and/or unwanted Email
• Computer viruses or destructive programs are often
attached to unsolicited email
• Spam blockers incorporate a myriad of approached
to identify and control spam
• Spam blockers are also referred to as:
– Junk mail filters
– Anti-spam programs
Return
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Search Tools
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Search engines
Metasearch engines
Specialized search engines
Tips
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Start with the right approach
Be as precise as possible
Use multiple words
Use Boolean operators
Check your spelling
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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-to-business (B2B)
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Business to Consumer
• Fastest growing type of e-commerce
• Three most widely used B2C applications:
– Online banking
– Financial trading
– Shopping
Return
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Consumer to Consumer
Web Auctions
• Consumer-to-consumer e-commerce (C2C)
• Similar to traditional auctions
• Types
– Auction house sites
– Person-to-person
auction sites
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Business to Business
• Involves the sale of a product or service from one
business to another (B2B)
• Primarily a manufacturer supplier relationship
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Security
• Payment methods must be fast, reliable, and
secure
• Three basic options
– Checks
– Credit card
– Digital cash
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Web Utilities
• Specialized utility programs that make using
the internet & web safer and easier
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Web-based applications
FTP
Plug-Ins
Filters
Internet Security Suites
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Plug-Ins
Acrobat Reader
www.adobe.com
Media Player
www.microsoft.com
QuickTime
www.apple.com
Real Player
www.service.real.com
Shockwave
www.adobe.com
Return
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Filters
CyberPatrol
www.cyberpartrol.com
Cybersitter
www.cybersitter.com
IProtectYou Pro
Web Filter
www.softforyou.com
Net Nanny
www.netnanny.com
Safe Eyes Platinum
www.safeeyes.com
Return
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Internet Security Suites
• Collection of utility programs designed to maintain
your security and privacy while on the web
– McAfee
– Norton
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Careers In IT - Webmasters
• Develop & maintain websites
• Back-up of the company website, updating
resources, and development of new
resources
• Work with the marketing department to
increase the site traffic flow
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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 resupply
• Internet cameras, wireless technologies, &
high-speed internet will allow you to virtually
monitor your home while on travel
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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?
• What are the basic elements of an email message?
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Discussion Questions (Page 2 of 2)
• 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.
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The End of Chapter 2
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