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2Ethernet Celebrates a Big Milestone
On May 22, 1973, Bob Metcalfe of the Palo Alto Research Center (now Xerox PARC) wrote a memo he circulated that was entitled “Alto Ethernet.” The memo contained a rough schematic of how it would work. Ethernet now runs on about 90 percent of all the world’s connected devices. The event, held May 22 and 23 at the Computer History Museum in Mountain View, drew a capacity audience.
3The Saffo and Metcalfe Show
Event emcee and Stanford University professor/author/futurist Paul Saffo (right) jokes with Bob Metcalfe, co-inventor of Ethernet, at the Ethernet Innovation Summit at the Computer History Museum in Mountain View. Metcalfe founded 3Com, and as of January 2006, he is a general partner of Polaris Venture Partners. He is also a professor of electrical engineering and director of innovation at the University of Texas at Austin.
4First Computer With a Mouse and Keyboard
The Xerox Parc Alto PC was the first computer to use the desktop metaphor and mouse-driven graphical user interface (GUI). It used a portrait screen orientation and was the granddaddy of many PCs to follow, including the Apple II, the IBM PC, the Macintosh and dozens of others. This one is on display at the Computer History Museum.
5Ethernet Cables Were All Yellow at First
6Ethernet Once Had to Compete for Network Dominance
At first Apple was not into networking at all, but it was obvious in the early 1980s that it was going to have to have its own internal connectivity. Thus was born AppleTalk in 1983 (cables at left), which was used with all Apple PCs. AppleTalk, Ethernet and IBM’s Token Ring networking system competed for users in those early days. Over time, Ethernet eclipsed all the competing systems.
7Early Cisco Systems Router
8Ethernet Circuit Board for Alto Computer
9Ethernet Cable With Transceiver
10Texas Instruments Silent 700 Computer
The Silent 700 was a line of portable computer terminals manufactured by TI in the 1970s and 1980s. Silent 700s printed with a dot-matrix heating element onto a roll of heat-sensitive paper. Some models were equipped with an integrated acoustic coupler and modem that could receive data at 30 characters per second.
11Ethernet Co-Inventors Bob Metcalfe and Dave Boggs
As a student in his 20s at MIT, Metcalfe connected computers to Arpanet, the government/military predecessor to the Internet. Later, he teamed up with radio expert David Boggs (right) to implement Ethernet, and later to collaborate on internetworking. Both Metcalfe and Boggs were on hand May 22 and 23 for the Ethernet Innovation Summit in Mountain View.