Epson EQUITY 386/33 PLUS - Manual (Page 180)

Extension
A suffix of up to three characters which 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.
Graphics
Lines, angles, curves, and other nonalphanumeric data.
Hard disk
The enclosed unit used to store large amounts of data. Unlike a
diskette, it is fixed in place. It can process data more rapidly
and store many more files than a diskette. Also called fixed disk.
8 Glossary