Robert Metcalfe is a renowned American electrical engineer and entrepreneur, best known as the co-inventor of Ethernet. Born on April 7, 1946, in Brooklyn, New York, Metcalfe went on to earn a Bachelor's degree in Electrical Engineering from MIT and a PhD from Harvard University. He co-founded 3Com Corporation and played a crucial role in the widespread adoption of Ethernet technology, revolutionizing computer networking. Metcalfe has received numerous awards for his contributions to the field of networking and continues to be a key figure in the tech industry.