802.11g is a wireless networking standard that was introduced in 2003. It operates in the 2.4 GHz frequency band and offers data transfer rates of up to 54 Mbps. This standard is backward compatible with earlier standards like 802.11b, allowing devices using different technologies to connect seamlessly. The 802.11g standard uses OFDM (Orthogonal Frequency Division Multiplexing) to improve performance and reduce interference. It is commonly used in home and office networks, providing a reliable connection for various devices such as laptops, smartphones, and tablets. Despite being succeeded by newer standards, it remains in use today.