What is the function of an IP address?

An IP address serves the crucial function of uniquely identifying each device connected to the Internet or a local network. This distinct identification is fundamental for data transmission, as it allows devices to locate and communicate with each other effectively. With billions of devices online, having a unique address ensures that data sent over the network reaches the intended recipient without confusion or misrouting.

For example, when you send an email or access a website, the data packets must reach the correct destination device, and the IP address serves as the specific address that directs this traffic. This unique identification also supports various functionalities within networking, such as routing, which is essential for determining the most efficient path for data to travel across different networks.