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1、Chapter2The Internet, the Web, and Electronic CommercelThe Internet and WeblInternet AccesslWeb UtilitieslCommunicationlSearch ToolslElectronic CommercelCloud ComputinglThe Internet of Things Computing Essentials 2017Learning ObjectivesExplain the origins of the Internet and the web.Explain how to a
2、ccess the web using providers and browsersCompare different web utilities including plug-ins, filters, file transfer utilities, and Internet security suitesCompare different Internet communications, including email, text messaging, instant messaging, social networking, blogs, microblogs, Webcasts, p
3、odcasts, and wikis Computing Essentials 2017Learning Objectives continuedDescribe search tools, including search engines and specialized search enginesEvaluate the accuracy of information presented on the webIdentify electronic commerce, including B2C, C2C, B2B, and security issuesDescribe cloud com
4、puting, including the three-way interaction of clients, Internet, and service providersDiscuss the Internet of Things (IoT) and the continuing development of the Internet to allow everyday objects to send and receive data Computing Essentials 2017IntroductionThe InternetInterconnected mesh of comput
5、ers and data lines Connecting millions of people and organizationsFoundation of the digital revolution.The web Provides an easy-to-use interface to Internet resourcesTo be effective and efficientEnd user awareness of the resources available on the Internet and the web Computing Essentials 2017The In
6、ternet and the WebThe InternetLarge global network connecting smaller networks all over the globeThe Internet launched in 1969 The United States funded a project to develop a national computer network ARPANET (Advanced Research Project Agency Network)World Wide Web or WWW was introduced in 1991The I
7、nternet and the web are NOT the sameThe Internet is the physical networkThe web is a multimedia interface to the resources available on the Internet Computing Essentials 2017Web Web 1.01st generationLinking existing information focusSearch programs were createdProvide links to websites with specific
8、 words or phrasesWeb 2.0Dynamic content creationFacebook is most common in Web 2.0Web 3.0Current generationPersonalized content creation for users Computing Essentials 2017Common Internet UsesCommunicating E-mail, photos, videosDiscussions ShoppingSearchingVirtual librariesEducation or e-learning En
9、tertainment Computing Essentials 2017Making IT Work for You Online EntertainmentUse the Internet to locate and play movies and television showsNetflix, Hulu, Pandora Computing Essentials 2017Internet Access ProvidersInternet Service Provider (ISP)Common way to access the InternetProvide a path to ac
10、cess the InternetUse telephone lines, cable, and/or wireless connectionsMost common providersVerizon, Comcast, Sprint, T-Mobile, AT&TISPS connect using connection technologiesDSL, Cable, Wireless Computing Essentials 2017BrowsersProvide access to web resourcesAllow you to explore the webUncomplicate
11、d interface to the InternetConnect to remote computersFile transferDisplay many varieties of multimediaPopular Web browsers include:Mozilla FirefoxApple SafariMicrosoft EdgeGoogle Chrome Computing Essentials 2017URLsUniform Resource LocatorLocation or address of resourcehttps is the most common for
12、web trafficTwo partsProtocolRules for exchanging dataDomain nameWhere resource is located Computing Essentials 2017Top-Level Doman (TLD)Top-level domain (TLD) or Web SuffixIdentifies the type of Commercial.eduEducational .govGovernment.milU.S. Network Computing Essentials 2017HTML and HyperlinksHype
13、rtext Markup LanguageMarkup language for displaying web pagesBrowsers interpret HTML commands Display document as a web pageHyperlinks or linksConnect to other web pagesText filesGraphic imagesAudio and Video Clips Computing Essentials 2017Interactive Web SitesTechnologies used to provide highly int
14、eractive and animated websitesCascading Style Sheets (CSS)JavaScriptAJAXAppletsMobile BrowsersDesigned to run on portable devices Computing Essentials 2017Web UtilitiesSpecialized utility programs that make using the Internet and web safer and easierPlug-InsFiltersFile Transfer UtilitiesInternet Sec
15、uritySuites Computing Essentials 2017Plug-InsAutomatically start and operate as part of you browserEnhanced browsing experienceenables special file formats and multimedia elementsAcrobat ReaderFlash PlayerQuickTimeWindows Media Player Computing Essentials 2017FiltersBlock access to selected sites an
16、d can set time limitsMonitor total time spent on the Internet and at individual web sitesAVG Family SafetyQustodio Parental ControlNorton Online FamilyNet NannyMcAfee Family Protection Computing Essentials 2017File Transfer UtilitiesUpload and download files to and from the InternetDownloadingUploadingThree popular types of programsFile transfer protocol (FTP) / Secure file transfer protocol (SFTP)Web-based file transfer servicesBit-Torrent Computing Essentials 2017Internet Security SuitesDesign
