Hostepedia - U
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UNIFORM RESOURCE LOCATOR (URL)
The specific location or address of material on the internet. For example the URL for this page is http://www.NetSmartz.org/safety/definitions.htm.
USENET
A world-wide system of discussion groups where users' postings are shared, like a worldwide bulletin board. These sites may contain material and language that is inappropriate for children, since anyone can post on these sites.
USER
Refers to anyone who uses a computer. Another way of saying "User" is "Netizen."
