Token Ring
Token Ring is a ring access network technology originally proposed by Olaf Soderblum in 1969. IBM purchased the rights to the original design and created and released its Token Ring product in 1984. Key elements of the original IBM design were the use of proprietary connectors, twisted-pair cable out to the network node, and structured wiring systems using centralized active hubs.
In 1985, the IEEE Project 802 created the 802.5 subcommittee and Token Ring became an international standard. IBM created Token Ring to replace Ethernet as the most popular LAN technology. Although Token Ring is in many ways a superior technology to Ethernet, a combination of cost issues and marketing has made it less popular than Ethernet.
The original specification ...
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