Actingasthekeypromoterofinformationrevolution,informationandcommunicationstechnologiesinfluenceeverycornerineconomicactivitiesandsocialstructureincreasinglyduetotheirrapidlydeveloping.Theimprovementoftechnologyaugmentthevelocity,volumeandfunctionsofinformationstorageandexecution,itdeclinesthecostofpropagandatoo.Moreimportantly,thetechnologicalessenceincludesthetransformationsofsimulationtechniqueintodigitaltechnique,semiconductorintomicroprocessor,cableandfixtelecommunicationsintowirelessandmobiletelecommunications,exclusivesystemintoopensystem,andrelativelyindependentmedialikeaudio,data,lettersandpicturesintointeractedmulti-media.