Dell Precision 370 DHM, User'S & Service Manual

Page: 179 / 182

Network connections cannot be protected by surge protectors. Always disconnect the network cable from the network
connector during electrical storms.
SVGA — super-video graphics array — A video standard for video cards and controllers. Typical SVGA resolutions are 800 x
600 and 1024 x 768. The number of colors and resolution that a program displays depends on the capabilities of the monitor,
the video controller and its drivers, and the amount of video memory installed in the computer.
S-video TV-out — A connector used to attach a TV or digital audio device to the computer.
SXGA — super-extended graphics array — A video standard for video cards and controllers that supports resolutions up to
1280 x 1024.
SXGA+ — super-extended graphics array plus — A video standard for video cards and controllers that supports resolutions
up to 1400 x 1050.
system board — The main circuit board in your computer. Also known as the motherboard .
system setup — A utility that serves as an interface between the computer hardware and the operating system. System
setup allows you to configure user-selectable options in the BIOS, such as date and time or system password. Unless you
understand what effect the settings have on the computer, do not change the settings for this program.
system tray — See notification area .
T
TAPI — telephony application programming interface — Enables Windows programs to operate with a wide variety of
telephony devices, including voice, data, fax, and video.
text editor — A program used to create and edit files that contain only text; for example, Windows Notepad uses a text
editor. Text editors do not usually provide word wrap or formatting functionality (the option to underline, change fonts, and so
on).
travel module — A plastic device designed to fit inside the module bay of a portable computer to reduce the weight of the
computer.
U
UPS — uninterruptible power supply — A backup power source used when the electrical power fails or drops to an
unacceptable voltage level. A UPS keeps a computer running for a limited amount of time when there is no electrical power.
UPS systems typically provide surge suppression and may also provide voltage regulation. Small UPS systems provide battery
power for a few minutes to enable you to shut down your computer.
USB — universal serial bus — A hardware interface for a low-speed device such as a USB-compatible keyboard, mouse,
joystick, scanner, set of speakers, printer, broadband devices (DSL and cable modems), imaging devices, or storage devices.
Devices are plugged directly in to a 4-pin socket on your computer or in to a multi-port hub that plugs in to your computer.
USB devices can be connected and disconnected while the computer is turned on, and they can also be daisy-chained
together.
UTP — unshielded twisted pair — Describes a type of cable used in most telephone networks and some computer networks.
Pairs of unshielded wires are twisted to protect against electromagnetic interference, rather than relying on a metal sheath
around each pair of wires to protect against interference.
UXGA — ultra extended graphics array — A video standard for video cards and controllers that supports resolutions up to
1600 x 1200.
V
video controller — The circuitry on a video card or on the system board (in computers with an integrated video controller)
that provides the video capabilities—in combination with the monitor—for your computer.
video memory — Memory that consists of memory chips dedicated to video functions. Video memory is usually faster than