Description: A Wireless Local Area Network (WLAN) is a technology that allows the connection of devices within a limited geographical area, such as an office, home, or campus. It uses radio waves to transmit data, eliminating the need for physical cables. WLANs are essential today as they facilitate mobility and flexibility in network access, allowing devices like laptops, smartphones, and tablets to connect to the Internet and local networks without physical constraints. The main features of a WLAN include its ability to support multiple devices simultaneously, ease of installation, and scalability. Additionally, WLANs can be configured to offer different levels of security, using protocols like WPA2 or WPA3 to protect transmitted information. In terms of infrastructure as code, WLANs can be managed and configured through scripts and automated tools, allowing for more efficient and agile network administration. In the context of modern computing, WLANs are essential for the connectivity of devices using various processors, especially in mobile and embedded devices, thus facilitating communication and data exchange in environments where mobility is key.
History: WLAN technology began to develop in the 1990s, with the introduction of the IEEE 802.11 standard in 1997, which defined specifications for wireless communication in local networks. Since then, it has evolved significantly, with the arrival of new versions such as 802.11b, 802.11g, 802.11n, 802.11ac, and 802.11ax, each improving the speed, range, and efficiency of the network. The popularization of WLANs skyrocketed in the early 2000s when mobile devices began to integrate Wi-Fi capabilities, allowing for easier and more convenient access to the Internet.
Uses: WLANs are used in a variety of environments, including homes, offices, schools, and public spaces. They allow users to connect to the Internet without the need for cables, facilitating mobility and collaborative work. Additionally, they are fundamental in the implementation of IoT (Internet of Things), where multiple devices connect and communicate wirelessly.
Examples: A practical example of WLAN is the use of Wi-Fi networks in cafes, where customers can access the Internet wirelessly while enjoying their drink. Another example is the use of WLANs in modern offices, where employees can work from anywhere within the building without being tied to a specific desk.
