Danny Cohen (computer scientist)

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.

Danny Cohen
Danny Cohen in 2009
Born(1937-12-09)December 9, 1937
DiedAugust 12, 2019(2019-08-12) (aged 81)
Other namesJames A. Finnegan.
Alma materTechnion, Harvard
Known forEndianness, Being an Internet pioneer, first to run a visual flight simulator across the ARPANet
AwardsNational Academy of Engineering member, IEEE Fellow, USAF Meritorious Civilian Service Award
Scientific career
FieldsMathematics, Computer Science, Computer Graphics
InstitutionsHarvard University, California Institute of Technology, University of Southern California, Myricom, Sun Microsystems
Doctoral advisorIvan E. Sutherland

Cohen is probably now best known for his 1980 paper "On Holy Wars and a Plea for Peace" which adopted the terminology of endianness for computing (a term borrowed from Jonathan Swift's Gulliver's Travels). Cohen served on the computer science faculty at several universities and worked in the private industry.

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