NP10_Chapter07

NP10_Chapter07 - Chapter 7 The Web and E-mail 7 Chapter...

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The Web and E-mail The Web and E-mail Chapter 7 Chapter 7
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Chapter 7: The Web and E-mail 2 7 Chapter Contents h Section A: Web Technology h Section B: Search Engines h Section C: E-commerce h Section D: E-mail h Section E: Web and E-mail Security
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Chapter 7: The Web and E-mail 3 7 SECTION A Web Technology Web Technology h Web Basics h HTML h HTTP h Web Browsers h Cookies h Web Page Authoring h HTML Scripts
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Chapter 7: The Web and E-mail 4 7 Web Basics h The Web is an interlinked collection of document, image, video, and sound files h A Web site contains a collection of related information h Podcasts h RSS vs. Atom h Videocasting
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Chapter 7: The Web and E-mail 5 7 Web Basics h 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 h A Web browser is client software that displays Web page elements and handles links between pages h Every Web page has a unique address called a URL
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Chapter 7: The Web and E-mail 6 7 HTML h Set of specifications for creating documents that a browser can display as a Web page h Markup language h HTML tags h XHTML h DHTML h Ajax
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Chapter 7: The Web and E-mail 7 7 HTML
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Chapter 7: The Web and E-mail 8 7 HTTP HTTP messages flow between a browser and a Web server.
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Chapter 7: The Web and E-mail 9 7 Web Browsers h Help you access Web pages h Upgrade to new browser versions as they become available h Popular browsers: Internet Explorer Mozilla Firefox Apple Safari Netscape Navigator Opera
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Chapter 7: The Web and E-mail 10 7 Web Browsers h 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
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Chapter 7: The Web and E-mail 11 7 Cookies h Small chunk of data generated by a Web server and stored on computer’s hard disk Fix problems caused by HTTP’s stateless protocol Relatively safe h Your computer does not have to accept cookies
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Chapter 7: The Web and E-mail 12 7 Web Page Authoring h Text editor h HTML conversion tool h Online Web authoring tools h Web authoring software Microsoft FrontPage Adobe Dreamweaver
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Chapter 7: The Web and E-mail 13 7 HTML Scripts h HTML scripts can perform complicated tasks and respond to user actions HTML forms Server-side script Client-side script Java applet ActiveX control h Digital Certificate
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Chapter 7: The Web and E-mail 14 7 SECTION B Search Engines Search Engines h Search Engine Basics h Formulating Searches h Citing Web-based Source Material
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NP10_Chapter07 - Chapter 7 The Web and E-mail 7 Chapter...

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