等级考试网上报名系统的设计与实现

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1、19http://www.wordwendang.com/en/UtilizingVerySmallApertureTerminal(VSAT)TechnologyInfrastructureinAfricanSchoolsThisworddocumentwasdownloadedfromthewebsite:http://www.wordwendang.com/en/,pleaseremainthislinkinformationwhenyoureproduce,copy,oruseit.

2、ordwendang.com/en'>worddocumentsByEbenezerMalcolm*AbstractRecentchangesinInformationCommunicationTechnologies(ICTs)aretransformingindustrialcountries’schools,managementpractices,andthestructureofnationalandglobaleconomies.Anewdivideisbeingcreatedbetweentheinformat

3、ion-richeconomiesandslow-movinginformation-pooreconomiessuchasAfricancountries.Inaddition,anewtypeofglobalinequalityisalsorapidlyemergingbetweenthosecountriesthatarelinkedintotheglobalnetworksandthosethatarenot.Unfortunately,Africalagsbehindtherestoftheworldineverydim

4、ensionofthistechnologicalrevolution.LackofmoderntelecommunicationinfrastructuresinAfricacontinuestohindersocio-economicdevelopment.AccordingtoWorldBank,thecostofInternetconnectivityforexampleisaseriousbarriertoeducationinvirtuallyeveryAfricancountry(WorldBank1996).See

5、WorldBank(1996)"PartnershipforCapacityBuildinginAfrica".AReportoftheAfricanGovernorsoftheWorldBanktoMr.Wolfensohn,bythenPresidentofWorldBank.Acommercialdial-on-demandInternetinGhanacostsUS$55/month,notincludingunderlyingtelecommunicationcostsinKenyasuchcostsareUS$30-4

6、0/month.InNamibia,thecheapestcommercialdial-on-demandInternetservicecostsUS$15/monthSeeSchoolNetNamibiarealities(p.14)athttp://www.schoolnet.na/news/ICTworkfacereality.pdfRetrievedon5/1/2006.Pleasegotohttp://www.wordwendang.com/en/,whereyoucandownloadmillionworddocume

7、nts.19http://www.wordwendang.com/en/ThereistheneedforAfricacountriestoputinplacestrategiestocatchupwiththerestoftheworldinmodernICTinfrastructureinnovativetechnology.AclassicalexampleofsuchaninfrastructureistheVerySmallApertureTerminal(VSAT)Technology.Africacountriesc

8、anutilizeVSATtechnologytoenhanceelectroniclearninginschools.ThepaperfirstexplainshowtheVSATtechnologyworks.Italsogivesabrief