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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.
URL (uniform resource locator)
address of a Web site, such as
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 ports and
parallel ports and eliminating the need for
so many connectors and so many cables.
(Multiple USB peripherals can be linked
together in a 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.
Usenet (users' network) A world-wide
network of computers set up to transmit
messages to newsgroups. See newsgroups.
V.90 standard A standard adopted in
1998 to resolve two competing technol-
ogies for 56Kbps modems. (If your modem
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does not conform to the V.90 standard, you
can visit the manufacturer's Web site and
download a software upgrade.)
video phone See Internet phone.
virus A set of software instructions
written to harm computers. A virus can
cause unusual messages to display on the
screen, destroy information on the hard
The
disk, or cause your hard disk to crash.
Some viruses affect your computer
immediately; others are set to activate on a
certain date. See anti-virus software.
WAV A file format used to store sounds.
WAV sound files can be identified by the
file extension .wav. Microsoft and IBM
developed the format for Windows
programs that support sound.
Web See World Wide Web.
Web browser See browser.
window A framed area that displays on
the Windows desktop after you select an
item or open a program.
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