A Local Area Network (LAN) connects computers and devices within a limited area such as an office building, school, or home. LANs allow connected devices to share files, printers, and internet access while communicating quickly with each other. Municipal buildings typically have LANs connecting staff computers, allowing access to shared databases, email servers, and common resources. LANs can use wired connections through ethernet cables or wireless connections (Wi-Fi). IT departments manage municipal LANs, ensuring security through firewalls, controlling network access, and maintaining reliable connectivity for staff to deliver public services effectively.