The Domain Name System (DNS) helps users to find their way around the Internet.
IP address” (IP stands for “Internet Protocol”
Every computer on the Internet has a unique address – just like a telephone number – which is a rather complicated string of numbers. It is called its “IP address” (IP stands for “Internet Protocol”). IP Addresses are hard to remember. The DNS makes using the Internet easier by allowing a familiar string of letters (the “domain name”) to be used instead of the arcane IP address. So instead of typing 184.108.40.206, you can type http://www.internic.net. It is a “mnemonic” device that makes addresses easier to remember.