Epson EQUITY 386/33 PLUS - Manual (Page 179)

DOS
Disk Operating System. A commonly used operating system
that controls the computer’s input and output functions. See
also 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
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
N-color graphics at resolutions up to 640 x 350.
Expandedmemory
Memory that specially written MS-DOS application programs
can use with an Expanded Memory Specification (EMS) device
driver such as EMM386.
Extended Memory
Memory above 1MB that is accessed by the protected mode of
the 80386 microprocessor and is available to some application
programs and operating systems.
Glossary 7