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1236019648RANDPaulBaran(P.Baranetal:“OnDistributedCommunications”,Seriesof11reprots,RandCoorp.SantaMonica,Ca..,Aug.1964)1966Davies(packet)PaulBaran(packetswitching)(AdvancedResearchProjectAgency,ARPA)ARPA1969ARPANET1-312370TELENETTYMNETDATAPACCYCLADESTRANSPACNPLBPSS1987872141988CNPAC1990CHINAPAC1-3