User's Manual

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 system memory. The amount of video memory installed primarily influences the number of
colors that a program can display.
video mode — A mode that describes how text and graphics are displayed on a monitor. Graphics-based
software, such as Windows operating systems, displays in video modes that can be defined as x horizontal
pixels by y vertical pixels by z colors. Character-based software, such as text editors, displays in video modes
that can be defined as x columns by y rows of characters.
video resolution — See resolution.
virus — A program that is designed to inconvenience you or to destroy data stored on your computer. A virus
program moves from one computer to another through an infected disk, software downloaded from the
Internet, or e-mail attachments. When an infected program starts, its embedded virus also starts.
A common type of virus is a boot virus, which is stored in the boot sectors of a floppy disk. If the floppy disk is
left in the drive when the computer is shut down and then turned on, the computer is infected when it reads
the boot sectors of the floppy disk expecting to find the operating system. If the computer is infected, the
boot virus may replicate itself onto all the floppy disks that are read or written in that computer until the virus
is eradicated.
V — volt — The measurement of electric potential or electromotive force. One V appears across a resistance of
1 ohm when a current of 1 ampere flows through that resistance.
W
W — watt — The measurement of electrical power. One W is 1 ampere of current flowing at 1 volt.
WHr — watt-hour — A unit of measure commonly used to indicate the approximate capacity of a battery. For
example, a 66-WHr battery can supply 66 W of power for 1 hour or 33 W for 2 hours.
wallpaper — The background pattern or picture on the Windows desktop. Change your wallpaper through the
Windows Control Panel. You can also scan in your favorite picture and make it wallpaper.
write-protected — Files or media that cannot be changed. Use write-protection when you want to protect
data from being changed or destroyed. To write-protect a 3.5-inch floppy disk, slide its write-protect tab to
the open position.
X
Pa
g
e 13 of 14Glossar
y
1/13/2004file://C:\Documents%20and%20Settin
g
s\msclark1\Local%20Settin
g
s\Tem
p
\~hhBAF1.htm