A router is a device that connects different networks and directs data traffic between them. It acts like a traffic cop, ensuring that information sent over the internet reaches the correct destination. When you use the internet at home, your router connects your devices, like computers and smartphones, to your internet service provider (ISP), allowing you to browse websites, stream videos, and play games online. In addition to connecting devices, routers often come with built-in security features to protect your network from unauthorized access. They can also manage the speed and quality of your internet connection, making sure that everyone in your home can enjoy a smooth online experience.