A subdivision of a computer network that groups devices together for efficient data routing and security purposes.
Modern compound from 'sub-' (under, below) and 'network', coined in the 1980s with the development of TCP/IP networking protocols. The concept emerged from the need to organize large networks hierarchically.
Subnets are like neighborhoods within a city's postal system - they help organize internet traffic so your email doesn't get lost among billions of other data packets traveling the web simultaneously!
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