ArcNet and the Pursuit of Multiple Topologies - test-drb@ccmp.vtda.org

10 Oct 2001

...
  > At 10:26 AM 10/10/01 -0400, you wrote:
 > >On October 10, Iggy Drougge wrote:
 > >> >How about the original DIX Ethernet?  Try a web search for Aloha.
 > >>
 > >> Was DIX really the original Ethernet? Wasn't that 10 Mbps and all?
 > >
 > >  I believe the original Ethernet was 3Mbps.
 > >
 > >    -Dave 
...
  On Wed, 10 Oct 2001, Tom Uban wrote:
  Hmm, looking at my copy of: "The Ethernet, A
Local Area Network,
 Data Link Layer and Physical Layer Specifications", from Digital,
 Intel, and Xerox, September 30, 1980 -- the specification says:
 "Data rate: 10 Million bits/sec" 
 I don't know if it went to standard, but there definitely was 3Mbps
 ether.  I have a CHANNEL-3Mbps card for an S/370 here. 
You're right, Dave & Sridhar... from:
        http://www.baylor.edu/~Sharon_P_Johnson/etg/ethernethistory.htm
        1972-The first experimental Ethernet system, Alto Aloha Network,
        was developed by Metcalfe and his Xerox PARC colleagues. It was
        designed to interconnect the Xerox Alto, a personal workstation
        with a graphical user interface, and linked Altos to one another,
        and to servers and laser printers. The data transmission rate was
        2.94 Mbps [Spurgeon].
Regards,
-doug q