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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