ESEP2011910DECEMBER2011,SINGAPOREANANALYSISANDCOMPARISONOFOPENANDCLOSEDMOBILEPLATFORMSANDROIDVSIPHONEYINGLUZOUA,HAOWUB,JIANXINHUANGA,BAINFORMATIONENGINEERINGCOLLEGE,7JIANXUEROAD,JINSHUIDISTRICT,ZHENGZHOU,450001,CHINAABSTRACTWITHTHERELEASEOFANDROID22FROYOANDIPHONE4,THEWARBETWEENOPENANDCLOSEDMOBILEPLATFORMSTENDSTOBEFIERCERBEINGTHEREPRESENTATIVESOFTHETWOPARTIES,FROYOANDIOS4AREQUITEDIFFERENTATSYSTEMFRAMEWORK,NEWFEATURE,APPLICATIONMARKETANDINTEGRATIONMODELACCORDINGTOTHECOMPANYSPIRITSOFGOOGLEANDAPPLE,WEDOSOMEANALYSESANDCOMPARISONSOFTHEABOVEPOINTS,EXPLAINTHEDIFFERENCESOFANDROIDANDIPHONEFROMTHESHALLOWERTOTHEDEEPER,THENCONCLUDETHECHARACTERISTICSOFOPENANDCLOSEDMOBILEPLATFORMS,AIMINGATPROVIDINGANOBJECTIVEREFERENCEFORRESEARCHERSOFMOBILEPLATFORMS,HELPINGTHEMSEECLEARERINTOMOBILEINDUSTRYASARESULT,BOTHFROYOANDIOS4HAVETHEIRADVANTAGESANDDISADVANTAGES,STILLTHEYAREFARFROMBEINGPERFECT,THERESROOMFORFURTHERIMPROVEMENTKEYWORDSANDROID；IPHONE；FROYO；IOS4；SMARTPHONE；MOBILEPLATFORM1INTRODUCTIONINRECENTYEARS,THEPOPULARITYOFSMARTPHONEKEPTGOINGUPMOREANDMORESMARTPHONESARESOLDANDALOTOFPEOPLEAREEMBRACINGTHEMSMARTPHONESBROUGHTGREATCONVENIENCETOUSERS,ASWELLCREATEDOPPORTUNITIESFORSMARTPHONERESEARCHERSTHATSTOSAY,THEWIDESPREADOFSMARTPHONESBENEFITEDBOTHSIDESATTHESAMETIME,DEVELOPINGOFSMARTPHONEOSBECOMESONEOFTHESMARTESTINDUSTRYTOBEASMARTPHONEOS,THESYSTEMSHOULD1PROVIDESERVICESLIKEAPC2WORKWITHAGPUFORBETTERVISUALEFFECTS3ALLOWTHEUSERTOSURFONINTERNETFREELYANDAPPARENTLY,THEREREALSOSOMEWEAKNESSES1LIMITEDBATTERY2POORCPUPERFORMANCEAGAINSTPCCPU3SMALLSTORAGE4THEUSEOFRAMMAYLEADSTOLOSSOFDATAWHENTHEPHONERUNSOUTOFBATTERYNOWTHE2GIANTSOFSMARTPHONEOSAREANDROIDANDIPHONEOSONONESIDE,ANDROIDISBASEDONLINUXKERNELANDDALVIKVIRTUALMACHINE,ANDITISOPENSOURCEDTHEUPPERLAYEROFANDROIDISJAVABASED,ALLOWINGDEVELOPERSTODEVELOPANDROIDAPPLICATIONSWITHGOOGLESDKANDSELLTHEIRSOFTWAREINANDROIDMARKETONTHEOTHERSIDE,IPHONEOS,WHICHBASESONUNIXKERNELANDDARWINMODELBUTISCLOSEDSOURCED,EVOLVESFROMMACOSXANDISTHEDEFAULTOSOFIPHONE,IPODTOUCHANDIPADOBJECTIVECBASEDSOFTWARECANRUNINIPHONEOS,ANDJUSTLIKEANDROID,YOUCANDEVELOPYOUROWNIPHONEAPPLICATIONSANDUPLOADTHEMONTOAPPLESAPPSTOREFORSALE1234BYCOMPARINGTHELATESTANDROIDANDIPHONEOS,ANDROID22FROYOANDIOS4,WECANTAKEAGLIMPSEATTHEMAINFEATUREOFOPENANDCLOSEDSMARTPHONEOSSWHILETHE2OSSAREDESIGNEDINRATHERDIFFERENTMENTALITYANDFUNCTIONALITY,ITSALITTLEEARLYTOTELLWHICHONEISBETTER2SMARTPHONEOS21ANDROIDTHESYSTEMARCHITECTUREOFANDROIDCONSISTSOF5LAYERS,WHICHARELINUXKERNEL,ANDROIDRUNTIME,LIBRARIES,APPLICATIONFRAMEWORKANDAPPLICATIONS,FROMBOTTOMTOTOPANDROIDPROVIDESCORESERVICESLIKESECURITY,MEMORYMANAGEMENT,PROCESSMANAGEMENT,NETWORKSTACKANDDRIVERS,BASINGONLINUX26BEINGTHEABSTRACTLAYERBETWEENSOFTWAREANDHARDWARE,THELAYEROFLINUXKERNELHIDESTHEIMPLEMENTINGDETAILSOFHARDWAREANDPROVIDESINTEGRATEDSERVICESFORUPPERLAYERDALVIKVIRTUALMACHINEANDJAVACORELIBRARIESAREINCLUDEDINTHELAYEROFANDROIDRUNTIME,PROVIDINGMOSTFUNCTIONSINJAVACORELIBRARIESTHELAYEROFLIBRARIESCONTAINSACLASSOFC/CLIBRARIESFORANDROIDCOMPONENTSTHOSELIBRARIESAREINTEGRATEDBYTHELAYEROFAPPLICATIONFRAMEWORKANDTHENPROVIDEDTODEVELOPERSTHELAYEROFAPPLICATIONFRAMEWORKPROVIDESALLKINDSOFMODULESFORPROGRAMINITIALIZATIONTOSIMPLIFYTHEUSEOFCOMPONENTS,ALLOWINGDEVELOPERSDOWHATEVERTHEYWANTANDPROVIDESERVICESFOROTHERSOFTWARES,UNDERTHELIMITATIONOFSECURITY,OFCOURSEMAINSTREAMAPPLICATIONSARELOCATEDINTHELAYEROFAPPLICATION,INCLUDINGEMAIL,SMS,CALENDAR,GOOGLEMAP,WEBBROWSERANDCONTACTSUSERSINTERACTDIRECTLYWITHTHISLAYER12THELATESTVERSIONOFANDROID,ANDROID22FROYO,PUTSONSOMENEWFEATURESTHEYARE1SUPPORTFLASH101,ENABLESUSERTOWATCHFLASHONTHEPHONE2V8JAVASCRIPTENGINEINWEBBROWSERLEADSTOFASTERINTERNETDATATRANSPORTATION3BIGADVANCEINNETWORKSHARINGYOUCANUSETHEPHONEASA3GNIC,ORCONVERT3GSIGNALTOWIFI4AUTOMATICALLYSOFTWAREUPDATE5SOFTWARESCANBESETUPINSDCARDTOEXTENDFILESTORAGES22IPHONEIPHONEOSISCONSISTOF4ABSTRACTLAYERSCOREOS,CORESERVICE,MEDIAANDCOCOATOUCHRESPECTIVELYLAYERSOFCOREOSANDCORESERVICEAREDESIGNEDINCLANGUAGETOHANDLECORESYSTEMSERVICES,ENABLINGDEVELOPERSTOPERFORMFILEACCESS,SOCKETSCALLINGANDDATAHANDLINGCFNETWORKANDSQLITEAREALSOPARTSOFTHESE2LAYERSTHELAYEROFMEDIA,ACCORDINGTOITSNAME,THISLAYERISUSEDTOCONTROLVIDEOANDAUDIO,ASWELLHANDLE2DAND3DIMAGESTHEOPENGLESQURATZPARTOFTHELAYERISCODEDWITHCLANGUAGE,WHILETHEPARTOFCOREAUDIOANDCOREANIMATIONISOBJECTIVECBASEDTHELAYEROFCOCOATOUCHBUILDSABASICFRAMEWORKFORALLKINDSOFPROGRAMSINIPHONEMOSTPROGRAMSRUNINCOCOATOUCHLAYER,ANDITSSURELYOBJECTIVECBASED34THELATESTIPHONEOSISIOS4ITINCLUDESTHEFOLLOWINGNEWFEATURES1SOFTWARECLASSIFICATIONTHISFEATUREENABLESUSERTOPLACESORTEDSOFTWARESINTODIFFERENTDOCUMENTS,MAKINGITCLEARERTOMANAGE2EMAILINTEGRATIONONEACCOUNTISFORALLEMAILSFROMDIFFERENTPROVIDERS3IBOOK,ORIGINALLYFROMIPAD,ISBUILTINIOS4ABRANDNEWAPPLEGAMECENTERMAKESIPHONEATREMENDOUSENTERTAINMENTPLATFORM23ANDROIDVSIPHONEBEINGTHETOP2SMARTPHONEOSS,WERESURETHATBOTHANDROIDANDIPHONEHAVETHEIROWNADVANTAGESANDDISADVANTAGESNOWLETSTAKEALOOKATEACHOFTHEM,ANDSEEWHATUNIQUEFEATURETHEYHAVEANDROID22FROYOFULLYSUPPORTMULTITASK,WHICHMEANSYOUCANLISTENTOMUSICWHILEWRITINGBLOGANDIOS4,OFFICIALLYANNOUNCEDTOBEMULTI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