人教版高中英語選修計算機英語TheWorldWideWeb課件

1、The Internet and World Wide WebThe Internet and World Wide WeWhat are some services found on the Internet?DiscussionWhat are some services found oThe Internet The Internet is a worldwide group of networks that links millions of business, government agencies, schools, and individuals.The World Wide W

2、ebE-mailThe Internet The Internet is a How did the Internet originate?History of the InternetArpanet: Networking project by Pentagons ARPAGoal: To allow scientists in different places to share informationBecome functional: in September 1969 How did the Internet originatNextHistory of the InternetTod

3、ayMore than 350million host nodes1969Four host nodes1984More than 1,000 host nodesNextHistory of the InternetTod Who controls the Internet?No oneit is a public, cooperative, and independent network.Several organizations set standardsHistory of the Internet Who controls the Internet?No Slow-speed tec

4、hnologyDial-up accessmodem in your computer uses a standard telephone line to connect to the InternetConnection must be established each time you log on.How the Internet worksHigh-speed connectionConnection is always on whenever the computer is running.DSL, cable modem,fixed wireless, Wi-Fi, and sat

5、ellite modemsSlow-speed technologyDial-up What are ways to access the Internet?1.ISP, Regional or National2.OSP (AOL and MSN, for example)3.Wireless Internet Service ProviderHow the Internet works What are ways to access the IThe World Wide WebA worldwide collection of electronic documentsEach elect

6、ronic document is called a Web pageCan contain text, graphics, audio, video, and built-in connectionsA Web site is a collection of related Web pagesThe World Wide WebA worldwide What is a Web browser?FirefoxProgram that allows you to view Web pagesOperaSafariThe World Wide WebMicrosoftInternetExplor

7、erNetscape What is a Web browser?Firefox What is multimedia?Application combining text with other media elementsGraphicsAnimationAudioVideoVirtual realityPlug-InsThe World Wide Web What is multimedia?Applicatio What graphics formats are used on the Web?The World Wide WebBMPGIFTIFFJPEGPNG What graphi

8、cs formats are use What is animation?Appearance of motion created bydisplaying a series of still imagesin sequenceThe World Wide Web What is animation?Appearance Other Internet Services What is E-mail?Short for electronic mailThe transmission of messages and files via a computer networkOne of the or

9、iginal services on the InternetOther Internet Services What i What is instant messaging (IM)?A real-time Internet communications service that notifies you when one or more people are online and allows you to exchange messages or filesOther Internet Services What is instant messaging (IM What is a ch

10、at?Real-time typed conversation that takes place on a computerChat room is location on server that permits users to discuss topics of interestOther Internet Services What is a chat?Real-time typeWeb Publishing Plan a Web site Think through and design a Web site Create a Web site Put up a Web site Maintain a Web site Web Publishing Plan a Web siteSummaryLearn how to access t