Defense Data Network


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Defense Data Network

Component of the Defense Communications System used for switching Department of Defense automated data processing systems. Also called DDN. See also Defense Communications System; Defense Switched Network.
References in periodicals archive ?
Did you know that CHIPS became the first electronic magazine when an ASCII text edition was mailed over the Defense Data Network (DDN) to 250 host administrators in 1987--preceding the World Wide Web by seven years?
CAISI operates over existing military communications networks, that is, Mobile Subscriber Equipment, the Tri-Service Tactical Communications System, Defense Data Network, Defense-switching Network, U.S.
While all that was merrily bubbling away, more and more people in the know were demanding to be allowed to use a government funded system known variously as ARPANET, the Defense Data Network and, finally, the Internet.

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