The Interactive Glossary: Defining the Net

UNIX
Upgrade
Uploading
URL
Usenet
User Name
UUCP
UUencode

URL

An acronym for Uniform Resource Locator, a URL is the address for a resource or site (usually a directory or file) on the World Wide Web and the convention that web browsers use for locating files and other remote services.

Learn more: Understanding Web Addresses