Tandy TRS-80 4D - Page 23

Chapter
3^^
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Using
TRSDOS to
Prepare
Diskettes
TRSDOS'
major role is that
of
a
file
clerk. It
organizes each
diskette
like
a
file cabinet and
stores your
information in
disk files,
similar to
file
folders.
TRSDOS
stores the
disk
files wherever there
is space.
Files and
even parts
of files may be
stored
almost
anywhere on the
diskette. The
key to
where the
files are located
in the direc-
tory,
which TRSDOS
also puts
on the diskette.
The
CAT Command
If
you
turned off
your computer at
the
end of
Chapter
2,
turn it
on again. Then,
insert your
master
TRSDOS
System Diskette as
before.
To let you
see
which
files are on
your diskette,
TRSDOS
has a
catalog
(CAT) command.
Load
TRSDOS
and
at
"TRSDOS Ready,"
type:
CAT (ENTER)
TRSDOS
displays
the names
of
all visible,
non-system
files that are
stored
on all
diskettes
being used.
Notice
that it also
dis-
plays the
amount
of free
(available) space
on
the
diskette(s). Now
type:
CAT
(S, I ) (ENTER
)
TRSDOS
displays the
names of
all the
files
on the
diskette(s),
including
system
files
and
invisible
files.
Study
these
files for
a
moment.
In particular,
note
the
FORMAT and
BACKUP
files. You
will
use
them
later in
this chapter.
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