ARPANET

ARPANET (Advanced Research Projects Agency Network) ehk Arenenud Teaduslike Projektide Agentuuri Võrk on USA kaitseministeeriumi loodud arvutivõrk. Tegu on esimese andmepaketiedastusvõrguga maailmas. ARPANET on Interneti eelkäija.

ARPANET töötati välja 1970. aasta paiku kui eksperimentaalne laivõrk (WAN), mis suudaks üle elada tuumasõja. Ta ühendas omavahel USA ülikoolide arvutuskeskusi. 1971 oli sellesse ühendatud 15 asutust ja 23 arvutit ehk hosti. 1983 oli hoste juba 500.

1990 lõpetas ARPANET oma eksistentsi, sest selleks ajaks olid juba hakanud levima personaalarvutid.

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