Apple II - Saving information on a disk

Figure 3,'
Anatomy of a 3.5-1nch disk
lnc disk itself is a circular sheet of plastic with a metallic oxide
coating. A hard plastic Jacket contains and protects the disk. The
disk jacket protects the disk in two w:l.ys. First, it keeps dust, fm-
gerprints, and other foreign substances from reaching the disk
surface. Second,
it gives you !.he means to protect the disk's COll-
tents from unwanted changes. (See 'Write Protecting ;I 3.5-Inch
Disk.")
The jacket also contains a liner thaI cleans and lubricates
the disk when the disk spins.
• :. What kind 0/ disks /0 buy: Always buy high-quality, name-
brand disks_ The cheap, no-name disks arc made of lower-
quality materials and lend to break down or wear oul r.lthcr
qUickly. ""hen a disk goes bad, the computer can no longer
rC.:ld it, and your work is lost. When buying 3.5-inch disks,
always
makc sure you get double-sided disks. The disk drive
works with
both sides of the disk. A single-sidcd disk has a
cap3city of only 400K.
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so Chapter 3: More About Disks
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