Router - GCSE Computer Science Definition

A router is a device that connects different computer networks together and helps direct data, like emails or files, between them. Routers often connect LAN networks, such as your home network, to the internet, which is a WAN. Think of it like a traffic manager for the internet. It decides the best path for data to travel so it can reach its destination quickly and efficiently. When you use Wi-Fi at home, the router is the gadget that makes sure your phone, tablet, or computer can access the internet by sending and receiving information to and from the web. Routers are essential for connecting multiple devices to the internet and ensuring that data moves smoothly and securely across networks.