User's Manual

Directory
A group of files stored in a particular area on a disk. A
directory listing shows the name, location, and size of the files
in the directory. A directory can contain both files and
subdirectories.
Display adapter card
A circuit board that can be installed in one of the computer’s
option slots to control the way a monitor displays text and
graphics. Also called video card.
DOS
Disk Operating System. The generic term for the operating
system software that controls a computer and directs its input
and output functions. See also MS-DOS and Operating system.
Double- density
A type of diskette format that allows you to store twice as
much data as the previously used single-density format. A
3.5-inch, double-density diskette can store 72OKB of data. A
5.25-inch, double-density diskette can store 360KB of data.
EGA
Enhanced Graphics Adapter. A display adapter card that
allows you to display high-resolution graphics on an EGA
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 resolutions up to 640 x 350.
Expanded memory
Memory that specially written MS-DOS programs can use
when an expanded memory manager program maps that
memory into an accessible area. See also Memory manager.
6 Glossary