![[Recorded: March 10, 2009] Bob Metcalfe led invention, standardization, and commercialization of the Ethernet local-area networking system for personal computers (PCs). Metcalfe was born on April 7, 1946 in Brooklyn, New York. He graduated from Massachusetts Institute of Technology (MIT) in 1969 with bachelor's degrees in electrical engineering and industrial management. At Harvard University in 1970, he earned his master's degree in applied mathematics. His 1973 Harvard Ph.D. dissertation, Packet Communication, came out of research on Arpanet at MIT Project MAC and on Alohanet at the University of Hawaii. In 1972, Metcalfe joined the Xerox Palo Alto Research Center (PARC). He worked in the Computer Science Laboratory led by Jerry Elkind, Bob Taylor, Butler Lampson, and Chuck Thacker, who were developing early PCs. Metcalfe, in collaboration with David Boggs, invented and developed the Ethernet local-area network (LAN) and its system of packet protocols, which have proliferated and evolved to become today's Internet plumbing. In 1979, Metcalfe founded 3Com Corporation to promote](http://img.youtube.com/vi/PzrP4GZKdd4/2.jpg)
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Bob Metcalfe -...
![[Recorded Oct 22, 2008] Born on a farm in Missouri, the sixth of seven children, Jean Jennings Bartik always went in search of adventure. Bartik majored in mathematics at Northwest Missouri State Teachers College (now Northwest Missouri State University). During her college years, WWII broke out, and in 1945, at age 20, Bartik answered the government's call for women math majors to join a project in Philadelphia calculating ballistics firing tables for the artillery developed for the war effort. A new employee of the Army's Ballistics Research Labs, she joined over 80 women calculating ballistics trajectories (differential calculus equations) by hand - her job title:](http://img.youtube.com/vi/buAYHonF968/2.jpg)
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![[Recorded: 1996] Part 1 of 2 The Dawn of Electronic Computing 1935 1945 Computer pioneer Gordon Bell hosts this two-part program on the evolution of electronic computing from its pre-World War II origins through the development of the first commercial computers. His narration traces the development of the stored program computer architecture which remains the foundation of todays modern computers. In Part 1 The builders of the first five computer machines: the Bell Labs Model 1, the Zuse Z1-3, the Atanasoff-Berry Computer, the Harvard Mark 1 and the IBM SSEC tell their stories.](http://img.youtube.com/vi/qundvme1Tik/2.jpg)
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Bob Metcalfe -...