HP Compaq Presario,Presario 5000 User Manual page 227

by the amount of video memory on the
SVGA system. See pixel.
system file A resource file that contains
resources needed by the operating system,
such as fonts, icons, and default dialog
boxes.
taskbar See Windows task bar.
table of contents For a whole CD or any
session within a CD, it shows the number
of tracks, their starting locations, and the
total length of the data area. The table of
contents does not show the length of each
track, only its starting point.
track Every time you write to a CD, you
create at least one track that is preceded by
a gap. Any session may contain one or
more tracks, and the tracks within a session
may be of the same or of different types.
For example, a mixed-mode CD contains
data and audio tracks.
track-at-once A method of writing data to
a CD. Each time a track (data or audio) is
completed, the recording laser is stopped,
even if another track will be written
immediately afterwards. Link and run
blocks are written when the laser is turned
on and off.
UDF (Universal Disk Format)
system endorsed by OSTA (Optical
G 20
LOSSARY
T
U
A file
Storage Technology Association) for use
with packet writing and other recordable
optical disc technologies. Also known as
EAN.
upload To send information to another
computer on the Internet.
UPS (uninterruptible power supply)
A device that provides a short-term backup
power supply as well as surge protection.
See surge protector.
URL (uniform resource locator)
The address of a Web site, for example,
www.compaq.com.
USB port (universal serial bus port)
A connector for plugging in multiple,
ultra-high-speed peripherals. USB ports
are gradually replacing serial and parallel
ports and are eliminating the need for so
many connectors and cables. (Multiple
USB peripherals can be linked together in
a daisy chain to share the same port.)
Windows 98 included a built-in driver for
USB peripherals. Windows Millennium
supports a new USB standard that is 40
times faster than the previous standard. See
serial port and parallel port. See also
peripheral and driver.
Usenet (users' network) A worldwide
network of computers set up to transmit
messages to newsgroups. See newsgroups.
utility A small program that helps your
computer to manage system resources for
optimum performance. For example,
anti-virus, diagnostic, file back up, file
compression, and font management
utilities.
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