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Double-density
A type of diskette format that allows you to store twice as
much data as the standard-density format. A 3.5-inch,
double-density diskette can store 720KB 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 lbcolor 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.
Extended memory
Memory above 1MB that is accessed by 386 or 486
microprocessors when they are operating in protected or
virtual mode. This memory is available to OS/2 programs, but
is available to MS-DOS only if an extended memory manager
program is installed. See also
Expanded
memory and
OS/2.
Format
To prepare a new disk (or an old one you want to reuse) so that
the data you store on it can be used by your operating system.
Formatting divides a disk into tracks and sectors and creates
addressable locations where your operating system can find the
data.
6 Glossary