Dell PowerEdge 7150 - Manual (Page 34)

colors that a program can display depends on the capabilities of the monitor, the video driver, and the amount of memory installed for the video adapter.
VGA feature connector
On some systems with an integrated VGA video adapter, a VGA feature connector allows you to add an enhancement adapter, such as a video accelerator, to your
system. A VGA feature connector can also be called a VGA pass-through connector.
video adapter
The logical circuitry that provides—in combination with the monitor or display—your system's video capabilities. A video adapter may support more or fewer features
than a specific monitor offers. Typically, a video adapter comes with video drivers for displaying popular application programs and operating environments in a variety
of video modes.
On most current Dell systems, a video adapter is integrated into the system board. Also available are many video adapter cards that plug into an expansion-card
connector.
Video adapters can include memory separate from RAM on the system board. The amount of video memory, along with the adapter's video drivers, may affect the
number of colors that can be simultaneously displayed. Video adapters can also include their own coprocessor chip for faster graphics rendering.
video driver
Graphics-mode application programs and operating environments, such as Windows, often require video drivers to display at a chosen resolution with the desired
number of colors. A program may include some "generic" video drivers. Any additional video drivers may need to match the video adapter; you can find these drivers
on a separate diskette with your system or video adapter.
video memory
Most VGA and SVGA video adapters include VRAM or DRAM memory chips in addition to your system's RAM. The amount of video memory installed primarily
influences the number of colors that a program can display (with the appropriate video drivers and monitor capability).
video mode
Video adapters normally support multiple text and graphics display modes. Character-based software displays in text modes that can be defined as x columns by y
rows of characters. Graphics-based software (such as Windows) displays in graphics modes that can be defined as x horizontal by y vertical pixels by z colors.
video resolution
Video resolution—640 x 480, for example—is expressed as the number of pixels across by the number of pixels up and down. To display a program at a specific
graphics resolution, you must install the appropriate video drivers and your monitor must support the resolution.
virus
A self-starting program designed to inconvenience you. Virus programs have been known to corrupt the files stored on a hard-disk drive or to replicate themselves until
a system or network runs out of memory.
The most common way that virus programs move from one system to another is via "infected" diskettes, from which they copy themselves to the hard-disk drive. To
guard against virus programs, you should do the following:
l Periodically run a virus-checking utility on your system's hard-disk drive.
l Always run a virus-checking utility on any diskettes (including commercially sold software) before using them.
W
Abbreviation for watt(s).
write-protected
Read-only files are said to be write-protected. You can write-protect a 3.5-inch diskette by sliding its write-protect tab to the open position.
WWW
Abbreviation for World Wide Web.
ZIF
Acronym for zero insertion force. Some systems use ZIF sockets and connectors to allow devices such as the microprocessor chip to be installed or removed with no
stress applied to the device.
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