User's Manual

Diskette
A flat piece of flexible plastic coated with magnetic
material and used to store data permanently. Also
called floppy disk.
DOS
The Disk Operating System that controls the
computer’s input and output functions. See Operating
system.
Double-density
A type of diskette format that allows you to store twice
as much data as the standard-density format. A
double-density diskette for the Apex has a storage
capacity of 360KB.
File
A group of related pieces of information called records,
or entries, stored together on disk. Text files consist of
words and sentences. Program files consist of code and
are used by computers to interpret and carry out
instructions.
Floppy disk
See Diskette.
Format
To prepare a new disk (or erase an old one) so it can
receive information. Formatting a disk divides it into
tracks and sectors; this creates addressable locations on
it.
Graphics
Lines, angles, curves, and other nonalphanumeric
data.
G-4
Glossary