Broadband

Networking Essentials: From Local Networks to Global Internet Networks connect devices locally and across the world. In homes and offices, a small network links computers, phones, printers, and smart devices. The Internet then ties millions of these networks together into one global system. This guide explains the basics in plain language, with simple examples you can try at home or in class. How a local network works A local network, or LAN, uses a router to connect devices. Each device gets an IP address, usually via DHCP. A switch helps devices talk to each other inside the same network. Wi‑Fi adds wireless access for phones and laptops. The router also acts as a gateway to the Internet, and it uses NAT to map many private IPs to a single public address. In most homes, addresses look like 192.168.1.x, while the Internet sees one public IP. This setup keeps internal devices reachable to each other while keeping an exterior face for the world. ...

Mobile Communication and 5G Impact Mobile communication shapes how we work, learn, and stay in touch. 5G is more than faster downloads. It brings lower latency, higher capacity, and smarter networks that adapt to tasks. This helps apps run smoothly, even when many devices share the same connection. Overview 5G uses new radio spectrum and smarter network design. It can support many more devices at once, reduce waiting time, and enable edge computing closer to the user. These changes open up practical benefits for everyday life and business. ...