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Diskette
A flat piece of flexible plastic coated with magnetic material
used to store data permanently.
Display adapter card
A circuit board that can be installed in one of the computer’s
option slots to provide the monitor interface. The display
adapter card controls the way the monitor displays text and
graphics. (In the Equity 386/25 PLUS, a VGA display adapter
is built into the system board.) Also known as Video card.
DOS
Disk Operating System. A commonly used operating system that
controls the computer’s input and output functions. See
Operating system.
Double-density
A type of diskette format that allows you to store twice as much
data as the standard-density format. A 5¼-inch double-density
diskette can store 360KB of data. A 3½-inch double-density
diskette can store 720KB of data.
Drive
designator
The letter name of a disk drive, followed by a colon-for
example, C : .
EGA
Enhanced Graphics Adapter. A type of display adapter card that
allows you to display high-resolution graphics on a compatible
monitor. It can display up to 43 lines of text with 80 characters
on each line, or it can display monochrome or 16-color graphics
at up to 640 x 350 resolution.
Glossary 7