#166 Wi-Fi

Wi-Fi, short for "Wireless Fidelity," is a technology that allows electronic devices to connect to the internet and communicate with each other wirelessly. It's commonly used for local area networking and provides wireless access to the internet in homes, businesses, public places, and various other settings.
Key features and aspects of Wi-Fi include:
Wireless Communication: Wi-Fi uses radio waves to transmit data between devices and access points, eliminating the need for physical cables.
Access Points: Wi-Fi networks typically consist of one or more access points (routers or wireless access points) that serve as the central connection point for devices to connect to the internet.
Standards: Wi-Fi operates based on a set of standards developed by the Institute of Electrical and Electronics Engineers (IEEE). These standards define the frequencies, data rates, security protocols, and other aspects of Wi-Fi communication. Some common Wi-Fi standards include 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac, and 802.11ax (also known as Wi-Fi 6).
Frequency Bands: Wi-Fi operates in the 2.4 GHz and 5 GHz frequency bands, with each band having its advantages and disadvantages. The 2.4 GHz band typically has better range but can be more susceptible to interference, while the 5 GHz band offers higher data rates and less interference.
Security: Wi-Fi networks can be secured using various encryption methods and security protocols, such as WEP, WPA, and WPA2/WPA3, to protect data from unauthorized access.
Range: The range of a Wi-Fi network depends on several factors, including the power of the access point, the physical environment, and potential obstacles like walls and buildings.
Devices: Wi-Fi is supported by a wide range of devices, including smartphones, tablets, laptops, desktop computers, smart TVs, smart home devices, and more. These devices have built-in Wi-Fi adapters that allow them to connect to wireless networks.
Wi-Fi Hotspots: Public places like coffee shops, airports, libraries, and hotels often provide Wi-Fi hotspots, allowing people to access the internet on their devices when away from home or the office.
Mesh Wi-Fi: In larger homes or environments where traditional Wi-Fi routers may not provide adequate coverage, mesh Wi-Fi systems are used. These systems consist of multiple access points that work together to create a seamless and extended Wi-Fi network.
Wi-Fi has become an integral part of modern connectivity, enabling wireless internet access and facilitating the growth of the Internet of Things (IoT) by allowing various smart devices to connect to the internet and communicate with each other.

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