A router is a networking device that connects computers, smartphones, tablets, and other electronic devices to the internet and to each other within a local network. It serves as a central hub, directing data between devices and the internet, ensuring that the information reaches its correct destination.
When a device, such as a computer or phone, sends a request to access the internet, the router takes the data, processes it, and forwards it to the appropriate location, typically through a modem, which connects to the wider internet. Once the data comes back from the internet (such as loading a webpage), the router ensures it is sent to the correct device within the network.
Routers typically offer both wired and wireless connections, allowing devices to connect via Ethernet cables or Wi-Fi, depending on the setup. A wireless router creates a Wi-Fi network, enabling multiple devices to connect without the need for physical cables, making it ideal for homes, offices, and public spaces.
In addition to managing internet access, routers also provide security by offering firewall protection, preventing unauthorized access to your network. Some routers also feature additional capabilities like parental controls, guest networks, and bandwidth management. Overall, routers play a critical role in ensuring devices within a network communicate effectively and stay securely connected to the internet.