October 15, 1985: IBM Announces Token Ring Network
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1985– IBM announced, with co-developer Texas Instruments, the Token Ring network along with PC Network software – six months ahead of schedule. The TR only did network transmission speed of 4 Mbps (It didn’t hit speeds of 16 Mbps until 1989), and worked over standard phone wiring.
Using terminated BNC cable, Token Ring created just that; a Ring connection that talks in one direction.
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