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Glossary-16 Glossary
TCP/IP
See Transmission Control Protocol/Internet Protocol.
Transmission
Control Protocol/
Internet Protocol
(TCP/IP)
An industry standard instruction set that specifies how data is transmitted through a
network. TCP/IP enables cross-platform communications, that is, a computer running
a Microsoft Windows operating system can access data and information provided by
a computer running a different operating system. Every computer and network that is
connected to the Internet uses TCP/IP.
uninterruptible
power supply
(UPS)
A device that provides surge protection and, in the event of a power failure, short-
term battery backup power.
Uniform
Resource
Locator (URL)
An Internet address that specifies the location of information. Also known as
Universal Resource Locator.
Universal
Resource
Locator (URL)
See Uniform Resource Locator.
Universal Serial
Bus (USB)
A Plug-and-Play bus that allows up to 127 devices to be connected sequentially into a
single external USB port. See daisy chain, USB port. A device that transmits data at a
rate of 12 Mbps through a USB cable. A variety of devices are supported, such as
USB monitors, keyboards, and printers.
upload
To send a copy of a file to a remote computer. Contrast download.
UPS
See uninterruptible power supply.
URL
See Uniform Resource Locator.
USB
See Universal Serial Bus.
USB hub
A USB device that provides additional USB ports. See Universal Serial Bus.
utility
A program that assists with the operation of a computer, such as a power
management program or anti-virus program.
V.90 Standard
A standard endorsed by the International Telecommunication Union that makes it
possible for modems to communicate without regard to technological differences.
The k56flex standard is incorporated into the V.90 standard, ensuring compatibility
between V.90-enabled and K56flex-enabled modems.
Video CD
Supports MPEG1 video that does not require separate video player to play.