chapter 2 the internet and world wide web 1. the internet 课件

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1、CHAPTER2TheInternetandWorldWideWebTheInternetWhatistheInternet?TheInternetisaglobalwebofcomputersconnectedtoeachotherbywires,(mostlyphonelines).Ifyoulookatamapofbigcities,smallertowns,andscatteredhouses,eachisconnectedtogetherwithroads,railways,etc..ThisissimilartotheInternet,excep

2、twiththeInternet,wiresconnectcomputers.TheInternetisasuperhighway.SomewaystousetheInternetE-mailResearchShoppingNewsGamesEd-lineDoyoueverusetheInternet?HowoftendoyouusetheInternet?WhydoyougenerallyusetheInternet?InternetTermsWWWBrowserSearchEngineURLDomainhtmlWWWTheWorldWideWebBrow

3、serSoftwareprogramthatallowsapersontoviewWWWdocuments.ExamplesofbrowsersareNetscape,MicrosoftInternetExplorer,Mosaic,Macweb,andNetcruiser.SearchEngineAwebsitethatwillhelpyousearchtheInternetforkeywords,subjects,etc.Let’stryasearchnow!URLUNIFORMRESOURCELOCATOR-Theuniqueaddressofanyw

4、ebpage.Ittellsyourcomputerwheretheinformationisstoredsoitcanbeviewed.NowwearegoingtolookataURLDomainAwaytoindicatewhattypeofsiteyoumaybeviewing.IntheU.S.somecommondomainsare.com-commercial,.org-non-profitandresearchorganizations,.gov-governmentagency,.edu-education.Moreareconstantl

5、ybeingaddedsothesesshouldonlybeusedasguidelinestohelpyouknowwhattypeofsiteyouareon.WhatistheDomainfortheSchoolDistrictswebsite?htmlTheLanguageusedtocreateWebPagesLet’sviewandexampleofhtml.