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Glossary
download—(1) In communications, to receive a file from
another computer through a modem or network. (2) To
send font data from the computer to a printer. See also
upload
.
drag—To hold down the mouse button while moving the
pointer to drag a selected object. In the Windows
®
operating system, this refers to the left mouse button,
unless otherwise stated.
driver—See device
driver
.
DVD—An individual digital versatile (or video) disc. See also
DVD-ROM
.
DVD-ROM (Digital Versatile [or Video] Disc Read-Only
Memory)
—A very high-capacity storage medium that
uses laser optics for reading data. Each DVD-ROM can
hold as much data as several CD-ROMs. Compare
CD-ROM
.
E
emulation—A technique in which a device or application
imitates another device or application.
enable—To turn on a computer option. See also
disable
.
eSATA—An external device that supports hot swapping and
fast data transfer. Very useful in storing and transferring
large files.
executable file—A computer application that is ready to
run. Application applications and batch files are
examples of executable files. Names of executable files
usually end with a .bat or .exe extension.
expansion device—A device that connects to a computer
to expand its capabilities. Other names for an expansion
device are port expander, port replicator, docking
station, or network adapter.
extension—See
file extension
.
external device—See
device
.