IP-address

Every computer connected to the Internet has a unique IP address for identification. The IP address (IP= Internet Protocol) defines the standard according to which the data on the Internet is translated. An IP address is represented as a 32-bit digit and is also known as an IP number. This is usually represented in the form of three to four-digit decimal numbers, which are separated by dots separated are e.g. 111.255.45.13.
Because the sequence of digits in an IP address is usually abstract and hard to remember, the digit becomes one assigned names. DNS name servers can use existing address assignment tables to name translate to the referring IP address.

A computer can also have multiple IP addresses if it has multiple network connections. IPs are divided into static and dynamic addresses. A static IP address is fixed to a computer assigned, whereas with dynamic IP addresses his address only when he is logged into the network. This is mainly used by online services and providers because their customers are not permanently in the net are.