Danny Cohen

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2026-06-26

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Who is this?

Danny Cohen (December 9, 1937 – August 12, 2019) was an Israeli-American computer scientist specializing in computer networking. He was involved in the ARPAnet project and helped develop various fundamental applications for the Internet. He was one of the key figures behind the separation of TCP and IP (early versions of TCP did not have a separate IP layer); this allowed the later creation of UDP. Cohen is probably now best known for his 1980 paper "On Holy Wars and a Plea for Peace" which adop