David J. Farber, Influential Figure in Internet's Genesis, Dies at 91

David J. Farber, a prominent computer science professor and influential figure in the early development of the internet, died on February 7th in Tokyo at the age of 91. His son, Emanuel Farber, stated the cause of death was likely heart failure. Farber had been a faculty member at Keio University in Tokyo since 2018.

Farber's career began in the mid-1950s at Bell Laboratories, a time when computers were largely isolated systems. Communication between them was limited and often involved cumbersome methods like Teletype machines or punch card readers. Recognizing the potential for interconnected systems, Farber dedicated his career to bridging the gap and fostering the development of network technologies.

While Farber may not have invented a single core technology that defines the internet, his influence is undeniable. The New York Times previously recognized him as an 'early architect' of the internet, highlighting his significant contributions to the conceptualization and development of network communication principles. He played a crucial role in the evolution of communication and computation merging into the internet as we know it today.

However, Farber's lasting impact arguably lies in his role as an educator and mentor. He guided numerous students who went on to become leading figures in the field of computer networking, earning him the moniker 'Grandfather of the Internet'. Among his most notable accomplishments was mentoring students who later became central to the creation of the Internet Protocol (IP), the foundational protocol suite that governs how data packets are routed and managed across the internet. The IP protocol enables essential functions like addressing, routing, and error detection, forming the backbone of modern internet communication.

One notable example of Farber's influence was his collaboration with his Ph.D. student, Jonathan Postel. Their weekly meetings at a Southern California pancake house in the early 1970s provided a forum for brainstorming and solidifying many of the core concepts underpinning computer communication. Farber jokingly recalled gaining 10 pounds during this period, highlighting the intensity and dedication he brought to these collaborative sessions.

Farber's contributions extend beyond academia. He served as Chief Technologist at the Federal Communications Commission (FCC) from 1999-2000, advising the commission on technical matters related to telecommunications and internet policy. He also participated in various government and industry initiatives aimed at fostering innovation and promoting the growth of the internet.

David J. Farber's death marks the end of an era for the internet community. His legacy as a visionary, educator, and advocate for technological advancement will continue to inspire future generations of computer scientists and engineers. His influence on the development of the internet is immeasurable, and his contributions have profoundly shaped the world we live in today.