IEEE 802.11 is a set of standards developed by the Institute of Electrical and Electronics Engineers (IEEE) for wireless local area networks (WLANs). It defines how devices communicate over radio waves, enabling wireless internet access in homes, offices, and public spaces. The standards cover various aspects, including frequency bands, data rates, and security protocols. The most common versions of IEEE 802.11 include 802.11a, 802.11b, 802.11g, 802.11n, and 802.11ac, each offering improvements in speed and range. These standards have made it possible for devices like laptops, smartphones, and tablets to connect to the internet without physical cables, enhancing convenience and mobility.