Internet development timetable nbsp In the 1950s, nbsp 1957. The Soviet Union launched Sputnik, the first man-made earth satellite. In response, the US Department of Defense (DoD) established the Advanced Research Projects Agency (ARPA) and began to apply science and technology to the military field (:AMK:) nbsp; . Nbsp; in the 1960s, nbsp1961nbsp; Leonardnbsp；Kleinrock of MIT published "Information nbsp; Flowingnbsp; Innbsp large nbsp; Communicate. Nets ",(July) nbsp The first paper on packet switching (PS). Nbsp 1962nbsp j.c.r.nbsp of the massachusetts institute of technology; Licklider and W. nbsp; Clark published "nbsp；; Mannbsp computer nbsp. Communication ",(August) nbsp The concept of global network includes distributed social behavior. nbsp 1964。 Paulnbsp Balaam from Rand published Onnbsp Distributed nbsp. Communication nbsp. Network.nbsp packet-switched network; There is no exit. nbsp 1965。 Research on ARPA supporting "Time-sharing Computer System Cooperation Network". Nbsp; The TX-2 computer in Lincoln Laboratory of Massachusetts Institute of Technology is directly connected to the Q-32 computer of the system development company in Santa Monica, California through the telephone line of 1200bps (without packet switching). Subsequently, APRA added computers from Data Equipment Company (DEC) to form an "experimental network". nbsp 1966。 LawrencenbspG.nbsp from MIT. Roberts published "Towards nbsp；; Anbsp cooperate. Network. Ofnbsp timesharingnbsp; Computer ",(10 month) nbsp the first ARPANET plan. nbsp 1967。 AnnnbspARPAnbsp in Michigan, USA is held by Arbor; IPTOnbsp At the PI meeting, Larrynbsp Roberts organized a discussion on the design scheme of ARPANET. (April) nbsp. A seminar on ACM operating principles was held in Fort gatling, Tennessee. (10 month) nbsp. LawrencenbspG.nbsp。 Roberts published the first paper on ARPANET design, "Multiplenbsp Computer nbsp. Network nbsp. And nbsp. Computer room. Exchange.nbsp The first meeting of developers of three independent packet-switched networks (RAND, nbsp, ARPA). Nbsp; The National Physics Laboratory (NDL) in middlesex, UK is located in D.nbsp; W.nbsp。 Under the auspices of Davis, the data network of National Physics Laboratory was developed, D.nbsp; W.nbsp。 Davis was the first person to use the term "bag". NDL network is an experimental network of packet switching, which uses the communication line of 768kpbs. nbsp 1968。 Demonstrate the packet-switched network to the Advanced Research Projects Agency (ARPA). Nbsp; The proposal on ARPANET was submitted in August and received a reply in September. Nbsp; In June 5438+10, UCLA won the bid to establish a network measurement center. nbspBoltnbsp。 Beraneknbsp and nbsp. Newman Company (BBN) was awarded the contract to establish the packet switching part in the interface information processor (IMP). Nbsp us senator Edward nbsp; Kennedy sent a congratulatory message to BBN company, congratulating them on winning the million-dollar contract of ARPA to build the message processor of nbsp "cross-faith" (his slip of the pen should be "interface"), and thanking them for their efforts. Nbsp and Stevenbsp. The Loosely Organized Network Working Group (NWG) headed by Crocker began to develop host-level protocols for APRANET communication. nbsp 1969。 The United States Department of Defense commissioned the development of ARPANET for network research. Nbsp; Use the interface message processor IMP developed by BBN Company to establish the node (Honeywellnbsp with 12K memory; DDP-5 16 minicomputer); ATampt Company provides a communication line with a rate of 50kpbs. Nbsp node1:UCLA (visited on August 30th and September 2nd) nbsp function: network measurement center. Host, operating system: SDSnbspSIGMAnbsp7, sex. Node 2: Stanford Research Institute (SRI) (65438+1October1) nbsp; Function: Network Information Center (NIC)nbsp；; Host and Operating System: SDS940, GenienbspDougnbsp Engelbarth's view on "expansion". Ofnbsp human nbsp. An intellectual plan. Node 3: University of California, Santa Barbara (UCSB) (165438+1October1) nbsp; Function: Culler-Fried interactive mathematics nbsp host, operating system: IBMnbsp360/75, OS/MVTnbsp；; Node 4:4 Big: Utah (65438+February) nbsp Function: Graphics processing. Host, operating system: DECnbspPDP- 10. Author: Stevenbsp. Crocker wrote the first one.