A Wireless Local Area Network (WLAN) is a technology that allows devices to connect to a local network without physical cables. It uses radio waves to transmit data, enabling users to access the internet and share resources like printers and files from various locations within a limited area, such as homes, offices, or schools. WLANs typically rely on a device called a wireless router to manage connections and provide internet access. Devices like laptops, smartphones, and tablets can connect to the WLAN, offering flexibility and mobility for users while maintaining a secure and efficient network environment.