Epson EQUITY 3865X/20 PLUS - Manual (Page 247)

Expanded memory
Memory that specially written
MS-DOS
application programs
can use with an Expanded Memory Specification (EMS) device
driver such as EMM386.SYS.
Extended Memory
Memory above 1MB that is accessed by the protected mode of
the 80386SX microprocessor and is available to some
application programs and operating systems.
Extension
A suffix of up to three characters that you can add to a filename
to better identify it.
File
A group of related pieces of information called records, or
entries, stored together on a disk. Text files consist of words and
sentences. Program files consist of codes and are used by
computers to interpret and carry out instructions.
Filename
A name up to eight characters long that MS-DOS uses to
identify a file.
Fixed disk
See Hard disk.
Format
To prepare a new disk (or an old one you want to reuse) so that
it can store information. Formatting divides a disk into tracks
and sectors and creates addressable locations on it.
8 G l o s s a r y