Disk Drives; Diskettes - North Star Advantage User Manual

1.3.3 Disk Drives
The basic model ADVANTAGE has two
"floppy" disk drives. Each of these contains
a high precision motor and a record/play-
back head. The disk drives enable the
ADVANTAGE to "read" programs or data
from a diskette into the internal memory,
and to "write" information from the
memory onto a diskette for permanent
storage and later re-use.
Disk Drives
Figure 1-4
1.3.4 Diskettes
1-4
Both the programs used in operating the
ADVANTAGE and the data generated on the
computer are recorded on "floppy" disk-
ettes. In appearance and function, the disk-
ette resembles a small, flexible phonograph
record. Actually, the diskette is a wafer-thin
layer of mylar that has been magnetically
treated and enclosed in a plastic jacket for
protection. The diskettes used in the AD-
VANTAGE have a diameter of 514 inches.
Diskette
Figure 1-5
When properly cared for, a diskette provides permanent storage for programs or data. Disk-
ettes are also reusable, so you can replace information you no longer need with new programs
or data you would rather keep.
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