Wi-Fi

Mobile Communication Technologies and Standards Mobile networks connect billions of people and devices. Over decades, engineers and policymakers built rules that let phones talk, data move, and services run smoothly. This article explains how mobile communication technologies work and what standards shape the way we stay connected. Two kinds of players guide progress: standards bodies and technology groups. The 3GPP designs the radio part and the core network for 2G, 3G, 4G, and 5G. The IEEE 802.11 family defines Wi‑Fi that often helps devices reach the internet when cellular is weak. Regulators manage spectrum, safety, and roaming rules so devices from many brands work together across borders. ...

Networking Essentials for a Connected World Today, almost every device relies on a network to share information. A basic grasp of how networks work helps you set up gear, solve problems quickly, and keep data safe. What makes a network work A network links devices through cables or wireless signals. The core is the set of rules that devices use to speak with each other, especially TCP/IP. Each device has an address, and routers move data between networks. Simple home networks usually involve a modem, a router, and one or more devices like computers or phones. ...