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1、FromtheworldofradiointheworldtoasinglechipModerncomputertechnology,industrialrevolution,theworldeconomyfromthecapitalintotheeconomytoknowledgeeconomy.Fieldintheelectronicworld,fromthe20thcenturyintotheeraofradiotocomputertechnologyinthe21stcenturyasthecenteroftheintelligent
2、moderneraofelectronicsystems.Thebasiccoreofmodernelectronicsystemsareembeddedcomputersystems(referredtoasembeddedsystems),whilethemicrocontrolleristhemosttypicalandmostextensiveandmostpopularembeddedsystems.First,radiohascreatedgenerationsofexcellenceintheworldFiftiesandsix
3、tiesinthe20thcentury,themostrepresentativeoftheadvancedelectronictechnologyiswirelesstechnology,includingradiobroadcasting,radio,wirelesscommunications(telegraph),AmateurRadio,radiopositioning,navigationandothertelemetry,remotecontrol,remotetechnology.Earlythattheseelectron
4、ictechnologyledmanyyoungpeopleintothewonderfuldigitalworld,radioshowwasawonderfullife,theprospectsforscienceandtechnology.Electronicsbegantoformanewdiscipline.Radioelectronics,wirelesscommunicationsbegane-worldjourney.Radiotechnologynotonlyasarepresentativeofadvancedscience
5、andtechnologyatthattime,butalsofrompopulartoprofessionalfieldsofscience,attractingtheyoungpeopleandenablethemtofindalotoffun.Orefromthebedsidetothesuperheterodyneradioradio;reportissuedfromtheradioamateurradiostations;fromthetelephone,electricbelltotheradiocontrolmodel.Beca
6、mepopularyouthradiotechnology,scienceandtechnologyeducationisthemostpopularandmostextensivecontent.Sofar,manyoftheoldergenerationofengineers,experts,Professoroftheyearareradioenthusiasts.Funradiotechnology,radiotechnology,comprehensivetraining,frombasicprinciplesofelectroni
7、cs,electroniccomponentstotheradio-basedremotecontrol,telemetry,remoteelectronicsystems,hastrainedseveralgenerationsoftechnologicalexcellence.12Second,fromthepopularityoftheradioeratoeraofelectronictechnologyTheearlyradiotechnologytopromotethedevelopmentofelectronictechnolog
8、y,mostnotablyelectronicvacuumtubetechnologytosemiconductorelectronictechnology.Sem
