Glossary of Computer Terms
from World Wide Webfx



U
URL
Uniform Resource Locator (originally called Universal Resource Locator). A URL is essentially the address and path that internet client software uses to find a particular site on the net.See Uniform Resource Locator.

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Uniform Resource Locator (URL)
URLs are the resource locators used by the World Wide Web as explicit addresses for information. They contain an access method/resource type (file, Gopher, or http, for example); a host name; perhaps a TCP/IP port number; and may contain a directory/file path. These explicit strings are used by the Web-traversing programs to connect the user directly to a particular document or page. This URL connects you to the NETCOM Gopher Gopher: //Gopher.netcom.coIn Other examples of URLs include: file://ftp.yoda.edu/pub/doc/file.txt or ftp://ftp.yoda.edu/pub/doc/fiie.txt to describe a specific file of text, file://ftp.empire.Inil/pub to describe a specific directory, Gopher://swamp.dagoba.edu:1234 to describe how to get to a Gopher using a specific port number, and http://www.ice.hoth.org:1234/pub/doc/force.html to describe how to get to a World Wide Web page.

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Universal Time Coordinated (UTC)
Simply put, Greenwich Mean Time.

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Unix
an operating system; many manufacturers have their own version of Unix (e.g. SunOS, Solaris, AIX, HP/UX, IRIX, MACH, Linux).

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Unix mail
mail delivered to a Unix machine, can be read by a variety of mail reading programs.

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Unix-to-Unix Copy (UUCP)
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 that uses the UUCP protocol to pass news and electronic mail. See also e-mail, Usenet.

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upload
To transfer files from a local computer onto a remote computer,usually to a networked website or FTP site. Also, as a noun, the files uploaded.

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UPS
Uninterruptable Power Supply, usually refers to a device that sits between the power supply (wall outlet) and a computer to prevent outages, surges, etc. to adversely affect performance.

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Usenet
A massive (really massive) networked collection of thousands of topically named newsgroups, which in turn refers to special-interest forums where Internet users gather to discuss a staggering variety of subjects. Also, the computers that 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. To access Usenet newsgroups from a browser, simply begin the URL with news:// followed by the domain of the newsgroup.See also UNIX-to-UNIX Copy.

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user ID
An account name or login name. See userid

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userid
unique alphanumeric character combination that is assigned to a user's account. Also known as a login id or user ID

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user interface
the environment that allows a human to interact with a computer (Windows, DOS prompt, Unix prompt, X Window system, Machintosh environment, etc.).

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uudecode
a program that converts an uuencoded file back into a binary file.

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UUCP
See UNIX-to- UNIX Copy.

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uudecode
a program that converts an uuencoded file back into a binary file.

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uuencode
a program that converts a binary file into a form suitable for sendingover a network.

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