Позначка: Wi-Fi

Wi-Fi, short for Wireless Fidelity, is a technology that allows electronic devices to connect to a local area network (LAN) wirelessly, using radio waves. It enables devices such as computers, smartphones, tablets, and smart home appliances to communicate with each other and access the internet without the need for physical cables. Wi-Fi operates over various frequency bands, primarily 2.4 GHz and 5 GHz, and uses standard protocols set by the Institute of Electrical and Electronics Engineers (IEEE) to ensure compatibility between devices. Wi-Fi networks can vary in size from a straightforward home setup to extensive commercial networks covering larger areas, often secured with passwords to prevent unauthorized access.