AbriefhistoryofdiscoveryIn1787,Lavoisierfirstdiscoveredsiliconinrocks.In1800,Davidmistakenitforacompound.In1811,Guy-LussacandTanner(Thenard,LouisJacques)heatedpotassiumandsilicontetrafluoridetoobtaini...

Originaltext一JingGongpassedYanziandsaid:"Theuterusissmall,nearthecity,pleasemovetothegardenofYuzhang."Yanzibowedagainandresigned."Also,theinfantfamilyispoor,waitingforfoodinthemarket,butinthefuture,y...

ThesynonymousdivisionmethodgenerallyreferstotheEuclideanalgorithm.IntroductiontothealgorithmTheEuclideanalgorithmisanalgorithmusedtofindthegreatestcommondivisoroftwopositiveintegers.TheancientGreekmat...

FunctionThefunctionofvirtualmemoryThememoryplaysaveryimportantroleinthecomputer.Alltheprogramsrunninginthecomputerneedtobeexecutedthroughthememory.Iftheexecutionoftheprogramislargeormany,thenWillcause...

BasicinformationHistoricalevolutionLogo(2photos)TheestablishmentofCambridgeUniversityIn1209,itwasfirstestablishedbyagroupofteacherswhoescapedfromtheUniversityofOxfordinordertoavoidfighting.Inthe12thce...

IntroductionWiththeriseofe-commerce,businessuserswillprocessmoreandmorebusinessthroughtheInternetorIntranet,whichallowscompaniestobettersavecostsandimproveefficient.However,ifanenterprisebuildssuchapl...

TypeTomakeapicture,youneedacertaindegreeofcompositionandcolorskills.Themakingofanimationalsorequiresafoundationinart,andtheproductionofvideoandaudiorequiresprofessionalknowledgeandskills.Typesofmultim...

IntroductionHillpasswordisanalternativepasswordusingtheprinciplesofbasicmatrixtheory,inventedbyLesterS.Hillin1929.Eachletteristreatedasa26-basenumber:A=0,B=1,C=2...Astringoflettersistreatedasann-dimen...

Synonymsforlivingmaterialsgenerallyrefertoconsumptionmaterials.ClassificationThereareseveralwaystoclassifyconsumptionmaterials,andtherearethreemainones:(1)DividableaccordingtoconsumptionobjectsTherear...

MachineinstructionsareinstructionsthattheCPUcandirectlyrecognizeandexecute,andtheirmanifestationsarebinarycodes.Amachineinstructionisusuallycomposedofanopcodeandanoperand.Theopcodeindicatestheoperatio...

MeaningIfyoustayfortwonights,italsomeanstwonights.ExampleTwonightsinarow.MaoZhuan:"Ifyoustayinaplace,youwillcallaletter;ifyoustayinaplace,youarestilleverywhere."QingDynasty,LiangZhangju's"TriviaofRetu...

HistoricalevolutionIn1976,theBellInstituteoftheUnitedStatesbuiltthefirstopticalfibercommunicationexperimentalsysteminAtlanta,usinganopticalcablecontaining144opticalfibersmanufacturedbyWesternElectric....

ProductintroductionIn1911,HeikeKamelinHonnesofLeidenUniversityintheNetherlandsdiscoveredthattheresistancedroppedtozerowhenthetemperatureofmercurydroppedto4.2K.Andmanymetalsandalloyshavethecharacterist...

DocumentreleaseThe"InterimMeasuresfortheAdministrationofOnlineCommodityTransactionsandRelatedServices"hasbeenreviewedandapprovedbytheStateAdministrationforIndustryandCommerceofthePeople’sRepublicofChi...

FeaturesThetransmissionmediumisthephysicalpathbetweenthesenderandthereceiverinthecommunicationnetwork.Thetransmissionmediausedincomputernetworkscanbedividedintotwocategories:wiredandwireless.Twistedpa...