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McGraw-Hill/Irwin Copyright © 2008 by The McGraw-Hill Companies, Inc. All rights reserved. Chapter 2 The Internet, The Web, and Electronic Commerce.

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Presentation on theme: "McGraw-Hill/Irwin Copyright © 2008 by The McGraw-Hill Companies, Inc. All rights reserved. Chapter 2 The Internet, The Web, and Electronic Commerce."— Presentation transcript:

1 McGraw-Hill/Irwin Copyright © 2008 by The McGraw-Hill Companies, Inc. All rights reserved. Chapter 2 The Internet, The Web, and Electronic Commerce

2 2-2 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 ideas 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

3 2-3 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 1991 at CERN Page 30

4 2-4 Common Internet Uses Communicating –Exchange e-mail –Discussion Groups Online shopping Searching –Virtual Libraries Entertainment Education or e-learning Page 30

5 2-5 Internet Access Providers Common way to access the Internet Commercial Internet Service Providers (ISP) –National service providers –Wireless service providers Page 31

6 2-6 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 Page 31

7 2-7 URLs Uniform Resource Locators –All URLs have at least two parts Protocol Domain name Locates Web sites Page 32

8 2-8 More on Browsers Browsers interpret HTML commands –Hypertext Markup Language –Contained in a document Display document as a Web page –hyperlinks –Applets Mobile browsers Page 33

9 2-9 Communication Most popular Internet activity Types of communication –Electronic Mail (E-Mail)E-Mail E-Mail Address Spam –Instant MessagingInstant Messaging –Social NetworkingSocial Networking –Blogs, Microblogs, Wikis Page 33

10 2-10 E-Mail Transmission of electronic messages over the Internet Basic parts –Header Address Subject Attachment –Message –Signature Line Page 34 Return

11 2-11 E-Mail Address Example Page 34 Return

12 2-12 Spam Page 35 Junk and/or unwanted Email Computer viruses or destructive programs are often attached to unsolicited email Spam blockers identify and control spam Spam blockers are also referred to as: –Junk mail filters –Anti-spam programs Return

13 2-13 Instant Messaging Page 35 Is an extension of email that provides direct, live communication between ≥ 2 people Instant messaging programs also include: –Video conferencing features –File sharing –Remote assistance Most widely used instant messaging services: –AOL’s Instant Messenger –Microsoft’s MSN Messenger –Yahoo Messenger Return

14 2-14 Social Networking Page 36 One of the fastest growing uses of the Internet Three basic categories: –Reunite –Friend of a friend –Common interest RETURN

15 Blogs, Microblogs, Wikis 2-15 Page 36 Individuals create personal Web sites, called Web logs (blogs) -Online diaries -Info about a hobby Microblog publishes short sentences -Twitter Wiki is a web site specially designed to allow visitors to fill in missing info or correct inaccuracies. -Wikipedia

16 2-16 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 moving Page 37

17 2-17 Search Engines Specialized programs to assist in locating information Types of searches: –Keyword search –Directory search Page 40 Return

18 2-18 Metasearch Engines Page 41 Return MetasearchSite Dogpile www.dogpile.com Ixquick www.ixquick.com MetaCrawler www.metacrawler.com Search www.search.com Web Meta Search www.webmetasearch.com

19 2-19 Specialized Search Engines Page 42 Specialized ServiceSite Environment www.eco-web.com Fashionwww.infomat.com History www.historynet.com Lawwww.lawcrawler.com Medicinewww.medsite.com Return

20 2-20 Content Evaluation Not all information on the web is accurate Ways to evaluate accuracy of Web information include: –Authority –Accuracy –Objectivity –Currency Page 42

21 2-21 Electronic Commerce Also known as e-commerce Buying and selling of goods over the Internet –Business-to-consumer (B2C)Business-to-consumer –Consumer-to-consumer (C2C) Web auctions –Business-to-business (B2B) Page 42

22 2-22 Business to Consumer Fastest growing type of e-commerce Three most widely used B2C applications: –Online banking –Financial trading –Shopping Page 43 Return

23 2-23 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 RETURN

24 2-24 Security Payment methods must be fast, reliable, and secure Three basic options –Checks –Credit card –Digital cash Page 44

25 2-25 Web Utilities Specialized utility programs that make the usage of the Internet & web safer and easier –Web-based applications –Plug-InsPlug-Ins –FiltersFilters –FTP –Internet Security Suites Page 46

26 2-26 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 Page 48 Return

27 2-27 Filters Page 47 Return 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

28 CE06_PP02-28 Study Summary, Key terms, Questions p54 - 59 Page 266


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