technologiesWiFi

WiFi is a technology that enables wireless communication between devices and the internet. Developed in the 1990s, WiFi uses radio waves to provide a high-speed internet connection without the use of cables. It operates on various frequency bands, including 2.4 gigahertz (GHz) and 5 GHz, which support different data transfer rates.

WiFi is commonly used in a wide range of devices, including smartphones, laptops, and tablets. It is also integrated into many smart devices, such as thermostats, lights, and security cameras. WiFi signals can travel through walls and other obstacles, but their strength and reliability can be affected by physical barriers.

The first WiFi standard, IEEE 802.11, was released in 1997. Since then, multiple standards have been developed to meet increasing demands for faster data transfer rates and better security. These standards include WiFi 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac, and 802.11ax.

WiFi connects devices to a network through a process called association. When a device detects a WiFi signal, it can be seen by the router and associated with the network. The device is then issued an IP address, which allows it to access the internet and communicate with other devices on the network. Many businesses and public institutions offer WiFi connectivity as an essential service.

In addition to providing internet access, WiFi technology can also be used for various applications, such as wireless sensor networks and smart home automation. However, maintaining a stable WiFi connection can be affected by factors such as distance from the router, physical obstacles, and interference from other devices.