ULS - (User Location Server) - For Internet Phone users, for example, the ULS checks the user who has come on-line, the user's Internet address, and the NetPhone applications the user may currently be called with. Some NetPhone applications --such as Intel Internet Phone, Connectix VideoPhone, and Microsoft NetMeeting, integrate the ULS protocol directly into their software.
UNIX-to-UNIX CoPy (UUCP) - This was initially a program run under the UNIX operating system that allowed one UNIX system to send files to another UNIX system via dial-up phone lines. Today, the term is more commonly used to describe the large international network which uses the UUCP protocol to pass news and electronic mail. See also: Electronic Mail, Usenet.
Uploading - The process of sending a file to another computer. The file is uploaded by the sender.
URL (Uniform Resource Locator) - The standardized address format used for Internet addresses. URLS specify objects on the Internet, such as a file (ftp://), newsgroup (news://), telnet (telnet://), or web page (http://). A typical Internet URL looks like this: http://www.peasea.com. When URLs are entered into WWW Browser address boxes, they bring you to the particular address for a particular object.
Usenet - A collection of thousands of topically named newsgroups, the computers which run the protocols, and the people who read and submit Usenet news. Not all Internet hosts subscribe to Usenet and not all Usenet hosts are on the Internet. See also: Network News Transfer Protocol, UNIX-to-UNIX CoPy.
Usenet News - A system for posting and replying to Internet messages on discussions of just about any subject. Usenet works like a giant bulletin board. If you have a question, you tack it up, then check back periodically to see if anyone has put up a response to it. News reader software is needed to read these messages and present them in an organized fashion. See ALT above.
