Paul Baran, an engineer who helped create the technical underpinnings for the Arpanet, the government-sponsored precursor to today’s Internet, died Saturday night at his home in Palo Alto, Calif. He was 84.
In the early 1960s, while working at the RAND Corporation in Santa Monica, Calif., Mr. Baran outlined the fundamentals for packaging data into discrete bundles, which he called “message blocks.” The bundles are then sent on various paths around a network and reassembled at their destination. Such a plan is known as “packet switching.”
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