Router

A router is a networking device that directs data traffic between different devices and networks, acting like a digital traffic controller. In a home setup, your router connects to the modem (which receives internet from your provider) and then distributes that connection to your phones, laptops, smart TVs, and other devices — either via Wi-Fi or Ethernet cables. It assigns local IP addresses to each device, manages incoming and outgoing data packets, and helps protect your network using built-in security features like firewalls and encryption. Without a router, your devices couldn’t talk to each other or access the internet in a coordinated way.