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Glossary 195
WPAN — wireless personal area network. A computer network used for
communication among computer devices (including telephones and personal digital
assistants) close to one person.
WWAN — wireless wide area network. A wireless high-speed data network using
cellular technology and covering a much larger geographic area than WLAN.
WXGA — wide-aspect extended graphics array — A video standard for video cards
and controllers that supports resolutions up to 1280 x 800."
X
XGA — extended graphics array — A video standard for video cards and controllers
that supports resolutions up to 1024 x 768.
Z
ZIF — zero insertion force — A type of socket or connector that allows a computer
chip to be installed or removed with no stress applied to either the chip or its socket.
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 hold up to 100 MB of data.