Domain Name - The permanent URL (absolute address) of a web site that is registered, copyrighted and safe from having anyone else use the same name.
Screen - The web page equivalent of a single printed page in portrait format. The content of one printed page is approximately equal to two computer screens stacked on top of each other.
Virtual Hosting - A means by which a web site is hosted by another site. A virtually hosted web site has an address that includes the host's address as part of its URL. ie: http://www.all-digit-all.com is our domain name and absolute URL. A virtually hosted site would have the same address with the following example attached after the host name: http://www.all-digit-all.com/virtually_hosted_site_name/
Note: Virtually hosted sites have a lower initial start-up cost than registered domain name sites.
URL - Stands for Uniform Resource Locator, the absolute address of a web page.