Which system allows users to access websites using easy-to-remember names instead of numerical addresses?

The system that allows users to access websites using easy-to-remember names instead of numerical addresses is the Domain Name System, or DNS. DNS serves as a directory service for the internet, translating human-friendly domain names, like www.example.com, into their corresponding numerical IP addresses, such as 192.0.2.1. This process is essential because, while computers communicate using numerical addresses, humans find it much easier to remember and use names.

In contrast, a URL (Uniform Resource Locator) is the complete address used to access a resource on the internet; it often includes the domain name, but it does not perform any translation itself. An ISP (Internet Service Provider) is a company that provides internet access to individuals and organizations, while HTTP (Hypertext Transfer Protocol) is a protocol used for transferring web pages on the internet. Each of these serves different functions that are important in the realm of web navigation and internet connectivity, but DNS specifically fulfills the role of translating domain names into IP addresses for easier access to websites.