An IP address (Internet Protocol address) is a unique numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication. An IP address serves two main functions: host or network interface identification and location addressing.
There are two types of IP addresses: IPv4 and IPv6. IPv4 is the most common type of IP address and is a 32-bit number. IPv6 is a newer type of IP address and is a 128-bit number. Both IPv4 and IPv6 addresses are expressed in dotted-decimal notation, which is a way of representing a binary number as a sequence of decimal numbers separated by periods.