what is router in computer

A router is a networking device that forwards data packets between computer networks. It connects two or more packet-switched networks, allowing multiple devices to use the same Internet). Routers use the Internet Protocol (IP) to send IP packets containing data and IP addresses of sending and destination devices located on separate local area networks. They guide and direct network data, using packets that contain various kinds of data such as files, communications, and simple transmissions like web interactions. Routers can also provide security through embedded firewall and content filtering software. They can connect employees to networks, both local and the Internet, and allow for essential business activities to take place. Additionally, routers can be used to connect hard drives and printers for file-sharing and printing purposes. Routers can be physical or virtual appliances, and they are positioned where two or more networks meet at each point of presence on the internet. They are essential for connecting multiple networks and forwarding packets destined for their final destination).