292
Glossary
5.375 x 8.375 ver 2.3
disk drive
— The device that reads and writes information and programs
on a diskette or hard disk. It rotates the disk at high speed past one or
more read/write heads.
diskette
— A thin, flexible disk in a protective jacket that stores
magnetically encoded data. Diskettes can be removed from the
computer and come in two sizes: 5.25-inch and 3.5-inch. Your
computer uses 3.5-inch diskettes. See also
double-density diskette,
high-density diskette.
document
— Any file created with an application and, if saved to disk,
given a name by which it can be retrieved. See also
file
.
double-click
— To press and release the pointing device’s primary
button rapidly twice without moving the pointing device. In the
Windows
®
operating system, this refers to the pointing device’s left
button, unless otherwise stated.
double-density diskette
— A 3.5-inch diskette that can hold up to
720 KB of information (half the capacity of a high-density diskette).
See also
diskette, high-density diskette.
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 cursor 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 program imitates another
device or program.
enable
— To turn on a computer option. See also
disable
.
