DNS is an acronym stands for Domain Name System.
DNS was introduced by Paul Mockapetris and Jon Postel in 1983.
It is a naming system for all the resources over the internet which includes physical nodes and applications. It is used to locate to resource easily over a network.
DNS is an internet which maps the domain names to their associated IP addresses.
Without DNS, users must know the IP address of the web page that you wanted to access.
Working of DNS:
If you want to visit the website of "javaTpoint", then the user will type "https://www.javatpoint.com" into the address bar of the web browser. Once the domain name is entered, then the domain name system will translate the domain name into the IP address which can be easily interpreted by the computer. Using the IP address, the computer can locate the web page requested by the user.
