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File:PLI Diagram, BBN Report 2816, April 1974.jpg

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Description
English: Diagram of a Private Line Interface (PLI) for the ARPANET, BBN Report 2816, April 1974.
Date
Source https://ban.ai/multics/doc/a002700.pdf
Author Frank E. Heart, Bolt Beranek and Newman Inc. (BBN Technologies)

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April 1974

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