URI

Uniform Resource Identifier: An address for s resource available on the Internet.

The first part of a URI is called the "scheme". the most well known scheme is http, but there are many others. Each URI scheme has its own format for how a URI should appear.

Here are examples of URIs using the http, telnet, and news schemes:

http://www.matisse.net/files/glossary.html
telnet://well.sf.ca.us
news:new.newusers.questions