In order to identify each specific computer connected to the Internet, a special addressing system was developed. There are two types of Internet addressing: numeric (IP addressing) and symbolic. These two systems exist in parallel. Numerical addressing is used by machines, symbolic - by people. Indeed, it is much easier for a person to remember and interpret symbols (letters) than numbers.
Any computer connected to the Internet has an IP address (short for Internet Protocol), which consists of four numbers separated by periods (XXXX.XXX.XXX.XXX). The information presented in this form fully identifies the address of the computer. Each number ranges from 000 to 255. Such Internet addressing is sufficient to encode four billion computers., , . DNS ( Domain Name System). . , , : , . .
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