The Domain Name System (DNS) is a hierarchical decentralized naming system for computers, services, or any resource connected to the Internet or a private network.
Here's the nickel tour: Computers communicate over networks using IP addresses, not system names. So when you try to surf to www.example.com your computer has to first look up that system name using DNS to figure out that computer's IP address, which is then used to make the connection.
An analogy would be looking up someone's name in your Phone Contacts to find their phone number, then you dial the phone number.
Enter the meaning of each letter for DNS
The D in DNS stands for
The N in DNS stands for
The S in DNS stands for