Dell Latitude C540 - Manual (Page 171)

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. To change your wallpaper, access
the Display icon through the 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 destroyed. To write-protect a 3.5-inch floppy disk, slide its write-protect tab to the open
position.
X
XGA - extended graphics array
A video standard for video cards and controllers that supports resolutions up to 1024 x 768.
Z
Zip - A popular data compression format. Files that have been compressed with the Zip format are called
Zip files and usually have a filename extension of .zip. A special kind of zipped file is a self-extracting file,
which has a filename extension of .exe. You can unzip a self-extracting file by double-clicking it.
Zip drive - A high-capacity floppy drive developed by Iomega Corporation that uses 3.5-inch removable
disks called Zip disks. Zip disks are slightly larger than regular floppy disks, about twice as thick, and they
hold up to 100 MB of data.
ZV port - zoomed video port
A technology that supports the delivery of full-screen motion video and multimedia to portable computers
through the use of special software and a ZV Port Card (a type of PC Card).