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This document defines and describes different types of computer networks. It discusses local area networks (LANs) that connect devices within a home or office, metropolitan area networks (MANs) that span a larger area like a city, and wide area networks (WANs) that connect LANs over long distances such as across countries. It also covers personal area networks (PANs) used between devices close to an individual and wireless networks that can use technologies like Bluetooth, mobile networks, and Wi-Fi.
