Cambridge Ring (computer network)
The Cambridge Ring was an experimental local area network architecture developed at the Computer Laboratory, University of Cambridge starting in 1974 and continuing into the 1980s. It was a ring network with a theoretical limit of 255 nodes (though such a large number would have badly affected performance), around which cycled a fixed number of packets. Free packets would be "loaded" with data by a machine wishing to send, marked as received by the destination machine, and "unloaded" on return to the sender; thus in principle, there could be as many simultaneous senders as packets. The network ran over twin twisted-pair cabling (plus a fibre-optic section).
- "A brief informal history of the Computer Laboratory". University of Cambridge. 20 December 2001. Archived from the original on 2010-10-11.
- Andrew Hopper; Roger Needham. "The Cambridge Fast Ring Networking System" (PDF). ORL-88-1.
- Cambridge Ring Hardware
- Cambridge Fast Ring
- Cambridge Backbone Ring Hardware
- Cambridge Computer Lab Ring
- "Ring PCB". Relic Archive. University of Cambridge Computer Laboratory. Retrieved 9 April 2011.
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