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Robert Elliot Kahn is a famous American computer scientist, engineer and Internet pioneer. Together with Vinton G. Cerf, he developed Transmission Control Protocol (TCP) and Internet Protocol (IP), the standard communication protocols and the foundation upon which the modern Internet was built.
Kahn is considered one of the fundamental architects of the Internet.
In 1964, Kahn acquired a Ph.D. from Princeton University. In 1972, he started working for Lawrence Roberts in the Information Processing Techniques Office (IPTO) within ARPA. The work experience gave him the confidence to think about the need for an open-architecture network model, in which every network could communicate with other independent systems with individual software and hardware configuration. Kahn set four objectives to design the architecture that would later become the Transmission Control Protocol (TCP):
In 1973, Vint Cerf joined Kahn on the project and they were able to complete the early version of TCP. Afterwards, this protocol was split up into two individual layers, namely TCP and IP. Usually, these two are referred to as TCP/IP.