Each computer connected to the Internet must be uniquely identified so that other computers may address and send information to them. Therefore, each Internet computer has a unique number known as the Internet Protocol Address (or IP Address). It consists of four sets of up to three digits each, separated by periods. For example:
IP addresses are either dynamic or static. Static addresses mean a computer uses the same IP address every it connects to the Internet. Conversely, dynamic addresses assign a different number every time a connection is made.