The Web and E-mail The Web and E-mail Chapter 7 Chapter 7 7 Chapter 7: The Web and E-mail 2 Chapter Contents  Section A: Web Technology  Section B: Search Engines  Section C: E-commerce  Section D: E-mail  Section E: Web and E-mail Security 7 SECTION A Chapter 7: The Web and E-mail 3 Web Technology Web Technology  Web Basics  HTML  HTTP  Web Browsers  Cookies  Web Page Authoring  HTML Scripts 7 Chapter 7: The Web and E-mail 4 Web Basics  The Web is an interlinked collection of document, image, video, and sound files  A Web site contains a collection of related information  Podcasts, Videocasts  RSS 7 Chapter 7: The Web and E-mail 5 Web Basics  A Web page is the product or output of one or more Web-based files displayed in a format similar to a page in a book  A Web browser is client software that displays Web page elements and handles links between pages  Every Web page has a unique address called a URL 7 Chapter 7: The Web and E-mail 6 HTML  Set of specifications for creating documents that a browser can display as a Web page  Markup language  HTML tags  XHTML  DHTML  Ajax 7 Chapter 7: The Web and E-mail 7 HTML 7 Chapter 7: The Web and E-mail 8 HTTP HTTP messages flow between a browser and a Web server. 7 Chapter 7: The Web and E-mail 9 Web Browsers  Help you access Web pages  Popular browsers: – Internet Explorer – Mozilla Firefox – Apple Safari – Opera 7 Chapter 7: The Web and E-mail 10 Web Browsers  Helper applications extend browser’s ability to work with file formats – A plug-in is a type of helper application – A player is any helper application or plug-in that helps a browser display a particular file format [...]... messages Chapter 7: The Web and E-mail 31 7 E-Mail Overview Basic e-mail activities – Writing – Reading – Replying – Forwarding Chapter 7: The Web and E-mail 32 7 E-Mail Overview E-mail attachments are files that travel with an e-mail message – E-mail software converts e-mail attachments to MIME HTML-compliant e-mail software Additional e-mail features Chapter 7: The Web and E-mail 33 7 E-Mail Overview... Chapter 7: The Web and E-mail 28 7 Online Payment An electronic wallet can transfer your billing and shipping information to a participating site’s e-commerce Web server when you check out Chapter 7: The Web and E-mail 29 7 SECTION E-mail D E-mail Overview Netiquette E-mail Technology Chapter 7: The Web and E-mail 30 7 E-Mail Overview Any person with an e-mail account can send and receive e-mail messages... Chapter 7: The Web and E-mail 23 7 Shopping Carts Chapter 7: The Web and E-mail 24 7 Online Auctions  An online auction is the electronic equivalent to good old-fashioned yard sales, rummage sales, and auctions  You can expect to bid on new, used, closeout, overstock, or refurbished items at an online auction  Computer software takes the place of an auctioneer Chapter 7: The Web and E-mail 25 7... quantity and quality of links from one Web page to others  A meta keyword is entered into a header section of a Web page when it is created and is supposed to describe the page contents – Keyword stuffing Chapter 7: The Web and E-mail 16 7 Formulating Searches  Most search engines work with keyword queries in which you enter one or more words, called search terms Chapter 7: The Web and E-mail 17... screens Chapter 7: The Web and E-mail 21 7 Online Shopping In a typical shopping session, you connect to an online storefront and use navigation controls to browse through the merchant’s catalog As you browse, you can drop items into your electronic shopping cart At the checkout counter, you enter the information necessary to pay for the items you selected Chapter 7: The Web and E-mail 22 7 Online... generated by a Web server and stored on computer’s hard disk – Fix problems caused by HTTP’s stateless protocol – Relatively safe Your computer does not have to accept cookies Chapter 7: The Web and E-mail 11 7 Web Page Authoring  Text editor  HTML conversion tool  Online Web authoring tools  Web authoring software – Microsoft FrontPage – Adobe Dreamweaver Chapter 7: The Web and E-mail 12 7 HTML... Web and E-mail 33 7 E-Mail Overview Chapter 7: The Web and E-mail 34 7 Netiquette Internet etiquette – Meaningful subject – Use uppercase and lowercase letters – Check spelling – Be careful what you send – Be polite – Be cautious with sarcasm and humor Chapter 7: The Web and E-mail 35 7 Netiquette – Use smileys and text messaging shorthand cautiously – Use the Bcc function for group mailings – Don’t... Chapter 7: The Web and E-mail 18 7 SECTION E-commerce C E-commerce Basics Online Shopping Online Auctions Online Payment Chapter 7: The Web and E-mail 19 7 E-commerce Basics Business transactions conducted electronically over a computer network – B2C (business-to-consumer) – C2C (consumer-to-consumer) – B2B (business-to-business) – B2G (business-to-government) Chapter 7: The Web and E-mail 20 7... complicated tasks and respond to user actions – HTML forms – Server-side script – Client-side script – Java applet – ActiveX control Digital Certificate Chapter 7: The Web and E-mail 13 7 SECTION Search Engines B Search Engine Basics Formulating Searches Chapter 7: The Web and E-mail 14 7 Search Engine Basics A Web search engine is a program designed to help people locate information on the Web by formulating... queries Chapter 7: The Web and E-mail 15 7 Search Engine Basics  A Web crawler is a computer program that is automated to methodically visit Web sites  A search engine indexer is software that culls keywords from a Web page and stores them in a database  A search engine’s query processor looks for your search terms in search engine’s indexed database and returns list of relevant Web sites  Link popularity . The Web and E-mail The Web and E-mail Chapter 7 Chapter 7 7 Chapter 7: The Web and E-mail 2 Chapter Contents  Section A: Web Technology  Section. D: E-mail  Section E: Web and E-mail Security 7 SECTION A Chapter 7: The Web and E-mail 3 Web Technology Web Technology  Web Basics  HTML  HTTP  Web