American Internet pioneer (born 1943) and one of 'the fathers of the Internet,' who developed TCP/IP technology and the first commercial email system. Original felt tip sketch of a diagram of the "Internet Protocol Architecture," showing the levels of transportation protocols, internet protocols, and physical layers, accomplished by Cerf on a white 10 x 8 cardstock sheet, signed in the lower left, "Vint Cerf." In very fine condition.
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