DISKETTES,
DISKS,
AND
DRIVES
Now that you have assembled the various components of your system,
you'll want to start working with it. Before doing
so,
however, you will
have to know more about diskettes, disks, and drives. We'll examine
these subjects here.
DISKETTES
All
models of our system make use of diskettes for the storage of infor-
mation: programs, files of data, groups of related commands, texts, etc.
Perhaps the most important diskette
is
the system diskette. This diskette
contains the operating
system,
as
well
as
a series of commands that allow
you
to
perform fundamental operations with your system.
Application software is distributed on diskette. Diskettes come
in
dif-
ferent capacities; at a minimum, they can hold about 320,000 bytes
of of information; a byte is equivalent to a character, such as the letter
A or the digit 3.A diskette with the cardboard envelope
in
which it is
stored, is shown
in
Figure
3-1
. New diskettes generally come
in
car-
tons of ten, together with a supply of labels and write-protect stickers.
PERMANENT
LABEL
Fig.
3-1
Diskette
and
Envelope
TEMPORARY
LABEL
Mini
FO
220
CARDBOARD
EN
V ELOPE
3-1
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