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1、ThehistoryofmobilephonesUnconsciously,mobilephoneshavecomeintoourlivesmorethan30years.Aspeople’slivingstandardrises,mobilephonehasgraduallytransformedfromluxuryintoverypopularconsumerelectronicsproductuptonow.Byreviewingtheprocessofthedevelopmentofmobilephone,ithas
2、changedalotinthetermsoftheappearanceorthefunction.Thedevelopmentofmobilephonegotthroughtransformationagainandagain.Itformsthemodelingofdiverse,multiplefunctions,anditisnolongerasinglecommunicationtool.MotorolaDynaTACistheworld'sfirstmobilephone,theDynaTAC8000Xweigh
3、s2pounds,talkingtimeforhalfanhour,thesalespriceof$3995MartinCooperisKnownasthefatherofmobilephone.Itislikeabrick,butthischangedpeople’slife.Thisistheoriginalofseveralkindsofmobilephone’sappearance.Hearingthesefamiliarring,whatdowethinkof?Injustafewyears,mobilephone
4、’sshapebegantochange.theyaresmallerthantheoriginal,lighterthantheoriginal.SmallerandlighterInaddition,theirshapebegantodiversify.Functionalsobegantoincrease,suchassendingshortmessages,MP3,MP4,andsoon.Thefirstcovertype(滑盖)mobilephoneMotorola:8900Thefirstcapping(旋盖)M
5、otorolamobilephoneV70ThefirstminimumMotorolamobilephone:998FirstMP3integratedmusicfunctionphoneMobilephonefromanalog(模拟)eraintotheGSM(全球移动通信系统)era,thento2.5Gera,andevento3Gera.Mobilephonehasenteredarapiddevelopmentperiod.TheGrandDevelopmentOfTheMobilePhoneMobilepho
6、nedevelopedrapidly,justlikeagustofwind.About20yearsagoPeopleusedthephonelikeabrick.About10yearsagoMyphoneissmaller,notlikeabrick.NowadaysLookinghere,mybeautifulsmartphone.Abaut5yearsagoIcanusemynewphone.Allthosechangedsofast.TheEmergenceOfSmartphonesWhenitcomestosm
7、artphones,whatcrowdsintoourmindsisApple,Samsungandsoon.Theirappearanceisverygood-looking,andtheirfunctionsaremorepowerfulaswell.TheFunctionsOfSmartphonesBasicfunctionGPSnavigationSurftheInternetGoshoppingthroughtheInternetAndsoonInstallthelearningsoftwaretolearnThe
8、EndingThehistoryofmobilephones’developmentisveryshort.Duringthepast30years,ithasdevelopedfromtheoldestappearanceintowhatweusenow.Itisnotonlytomak