网络的形成和发展

1-1-11-1(a)-1-1(b)(1)(2)1221-2FEP-6019633SABRAI20001968GE23751-1-21236019648RANDPaulBaran(P.Baranetal:“OnDistributedCommunications”,Seriesof11reprots,RandCoorp.SantaMonica,Ca..,Aug.1964)1966Davies(packet)PaulBaran(packetswitching)(AdvancedResearchProjectAgency,ARPA)ARPA1969ARPANET41-312370TELENETTYMNETDATAPACCYCLADESTRANSPACNPLBPSS1987872141988CNPAC1990CHINAPAC1-31-1-3125IBM1974(SNA)1975DEC(DNA)1976UNIVAC(DCA)ARPANETDoDTCP/IPISOITU-TCCITT197731-1-4DDN12(ISDN)21(Internet)6