What are the main function of domain names?

What are the main function of domain names?

- Domain names provide an easy way to recognize and memorize the names using the numerically addressed Internet resources.

- It is used to address the Internet resources placed on internet or it provides and abstraction that allows the resources to be moved from one place to another in hierarchy.

- It provides a way to move the resources in a topological form and provide the translation to be done using the IP addresses and domain names.

- Domain names provide a way to the registrants to refer to the domain owners for their registration of the domain and have the ownership of it.