What is the function of the Domain Name System (DNS)?

The Domain Name System (DNS) serves a crucial function in networking by converting human-readable domain names, like www.example.com, into IP addresses, which are the numerical labels used to identify devices on a network. This process is essential because while users find it easier to remember domain names, computers and networking equipment communicate through IP addresses. By translating the names into IP addresses, DNS enables users to access websites and services on the internet without needing to memorize complex numerical strings.

This address resolution is fundamental to the functioning of the internet, as it allows web browsers and other applications to retrieve the correct server or service when a user inputs a domain name. In essence, DNS acts as a phonebook for the internet, making it possible for users to effortlessly navigate websites.