www.computepress.com is an example of a domain name.
Every domain name resolves to one IP address linked to a server. An IP address has a number format like 123.423.890.23. Because it is difficult for most of us to remember an IP address, we have domain names linked to these IP addresses. Like if www.computepress.com resolves to 123.423.890.23 you can imagine the former is easier to remember.
Resolves means when a domain name is contacted by a user that domain name reaches a particular IP address linked to it. Because this IP address is linked to a server and website files, the user ultimately reaches the website files which are meant for running a website.