Wi-Fi (Wireless Fidelity) is a wireless networking technology that allows electronic devices to connect to a wireless local area network (WLAN) without the need for cables or wires. It is a type of radio frequency (RF) communication that uses radio waves to transmit data over a network.
Wi-Fi operates on the same principles as other wireless communication technologies such as cellular networks and Bluetooth, but it has a shorter range and higher data transfer rates than Bluetooth. Wi-Fi networks can be set up in homes, businesses, public areas such as airports and coffee shops, and even on airplanes.
Wi-Fi technology is available in different types or standards that define the maximum speed and range of wireless communication between devices. Some of the most common types of Wi-Fi include:
802.11a
This standard provides fast data transfer speeds up to 54 Mbps in the 5 GHz frequency band. However, its range is limited compared to other Wi-Fi standards.
802.11b
This standard provides data transfer speeds up to 11 Mbps in the 2.4 GHz frequency band. It has a longer range than 802.11a but operates at a slower speed.
802.11g
This standard provides data transfer speeds up to 54 Mbps in the 2.4 GHz frequency band. It has a longer range than 802.11a and is compatible with 802.11b devices.
802.11n
This standard provides data transfer speeds up to 600 Mbps in both the 2.4 GHz and 5 GHz frequency bands. It has a longer range than 802.11g and is backward compatible with older Wi-Fi standards.
802.11ac
This standard provides data transfer speeds up to several gigabits per second in the 5 GHz frequency band. It has a longer range than 802.11n and is suitable for high-bandwidth applications such as streaming video and online gaming.
802.11ax (also known as Wi-Fi 6)
This standard provides data transfer speeds up to 10 Gbps in both the 2.4 GHz and 5 GHz frequency bands. It also has advanced features such as multi-user multiple-input and multiple-output (MU-MIMO) and orthogonal frequency-division multiple access (OFDMA) that can improve network efficiency and reduce latency.
Overall, Wi-Fi has transformed the way we live, work, and interact with the world around us, making our lives more convenient, productive, and enjoyable.
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