ConceptTheswitchinghub,whichcameoutin1990,cansignificantlyimprovetheperformanceofthelocalareanetwork.SwitchinghubsareoftencalledEthernetswitchesorLayer2switches(indicatingthatthisswitchworksatthedatal...

BasicinformationHistoricalevolutionBeforethefoundingofthePeople’sRepublicofChinaFebruary10,1931,RedOneThefirstradiotrainingclassofthearmystartedinXiaobuTown,NingduCounty,JiangxiProvince.In1931,theCent...

IntroductiontosystemcallsBriefintroductionThemainfunctionoftheoperatingsystemistomanagehardwareresourcesandprovidegoodInordertoachievethisgoal,thekernelprovidesaseriesofmulti-kernelfunctionswithpredet...

DevelopmenthistoryConceptdefinitionTheso-called"neo-classicism"firstlyfollowstherationalistviewpointandbelievesthatartmustproceedfromrationalityandrejectthesubjectivethoughtsandfeelingsofartistsEspeci...

Informationflowchart[一)informationdi;r}Whenrapltsimulatescalculations,itisnecessarytoabstractandsimplifytheprocessobjectunderstudy,andtheninputtheinformationonthegraphintothecomputer.Calculatein...

BusinessclassificationanddefinitionForeigneconomicbusinessreferstoeconomiceventsarisingfromtransactionsbetweenenterprisesandotherenterprisesorunits.Forexample,raisingfundsfrominvestorsandpurchasingfro...

Introductiontothemodel1.Modelresearchoccupiesanimportantpositioninthefieldofcommunication.Theresearchactivitiesofexpertsandscholarsareoftencarriedoutonthebasisofthemodeofcommunication.Modeisadescripti...

ThesynonymforTelecom(ChinaTelecom)generallyreferstoChinaTelecomGroupCo.,Ltd.HistoryChinaTelecomwasoriginallycalled"ChinaTelecomMobileCommunicationsPostandTelecommunicationsAdministration".In1995,theen...

SynonymsoftheUniversityofHelsinkiinFinlandgenerallyrefertotheUniversityofHelsinki.ThenationalflagshowsthesignificanceoftheUniversityofHelsinkitotheentirecountryofFinland.TheUniversityofHelsinkihas11de...

OverviewDatabasemanagementsystemisalarge-scalesoftwarethatmanipulatesandmanagesdatabases.Itisusedtoestablish,useandmaintaindatabases,referredtoasDBMS.Itconductsunifiedmanagementandcontrolofthedatabase...

SynonymsleafnodesgenerallyrefertoleafnodesHBSTR-treeleafnodesThehybridindexmethodHBSTR-treethatintegratesR-tree,hashtableandB*treeisadopted,asshowninFigure1TheprincipleandframediagramofHBSTR-tree.3The...

Fee-payingobjectsPaidpayersareunitsandindividualswhopayvalue-addedtax,consumptiontax,andbusinesstax.Theyareallpayersofadditionaleducationfees(referredtoaspayers).SinceDecember1,2010,inaccordancewithth...

ReasonsforlossBecauseofGFWandotherreasons,themailcommunicationbetweenChinaandforeigncountrieswasmiserable.Itcanbesaidthatthereturnorlossofoverseasmailiscommonplace.Inthefaceofthissituation,therearesev...

DefinitionIncomputerhardware,codingreferstotheuseofcodestorepresentgroupsofdata,makingitinformationthatcanbeprocessedandanalyzedbyacomputer.Codeisasymbolusedtorepresentthings.Itcanberepresentedbynumbe...

HistoricalevolutionBeforetheCulturalRevolutionIn1909,theQinggovernmentestablishedtheScientificTerminologyCompilationMuseum,andin1932theNanjingNationalGovernmentestablishedtheNationalCompilationandTran...