The Domain Name System (DNS) is a foundational technology that translates human-friendly domain names, like example.com, into numerical IP addresses that computers use to identify each other on the internet. Acting as the internet s address book, DNS enables users to access websites and online services without needing to remember complex strings of numbers. When a user enters a web address in their browser, the DNS quickly locates the corresponding IP address, ensuring seamless connectivity and navigation across the web.