Open Shortest Path First, a routing protocol used in computer networks to determine the most efficient path for data transmission.
Acronym coined in the 1980s from English technical terms: 'open' (publicly available standard), 'shortest path' (optimal route), and 'first' (priority algorithm). Developed as an improvement over earlier routing protocols.
OSPF revolutionized internet routing by making networks self-organizing - routers constantly chat with neighbors to build maps of the network, like GPS systems that update traffic conditions in real-time.
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