Disk
Format
and Files
You
can store programs and then easi-y
retrieve
and
run
them
because of the
efficient
way
your
operating
system
organizes
information on disks. The two
carts of
disk organization are:
Disk
Format
•
Disk
Pies
Formatting
prepares
disks =or information
storage.
It
elides disks
info
the parts of a
,:
filing
:
'
system:
cylinders,
tracks, s.ectors,
and
bytes.
II
also
creates a directory on
eac'i
cHsk.
You
can store information on
formatted
disks
only.
Any disk that
contains an
application
program or operating system
is
already
formatted.
The
blank diskettes you buy in a
Radio
Shack Computer Center
are
not
formatted.
To
format
a data diskette
:
follow
the
steps under
"Formatting Disks
11
in Chapter
7.
'Topoy
D
:
skeite System
Preparation.
,:
Disk
Files
&re
similar
to
=
he files in a file cabinet.
They
can
contain
whatever you put in
them
programs, cata
:
information
and
each fie has a different name.
Disk
files
usuaily
are created
through
an application program.
Operating
Systems
and
Application
Programs
Operating
systems
are
programs
that enab
:
e you
to
operate
a
computer.
They let you manipulate
and
s'ore data, contro
peripheral
and
use application programs.
Application
programs
heip
you perform tasks
such
as
bookkeeping, word
processing,
and program
develooment.
Operating Systems
Your
system comes with three
operating
systems:
•
TRS-XENIX
TRSOOS-II
•
TRSDOS 2.0b
All
application
programs mus:
be
run
with one of these operating
systems
in
Drive or on Drive
4.
To
determine
which ooerating
system your apolieation
program uses
:
check:
Application
manual
Diskette label.
The
laoel
identifies
a TRS-XENIX,
TRSDOS-II,
or
TRSDOS
application program. If
a system is no: given, you
have a
TRSDOS
apolication.
To
learn more about your
operating
systems
:
see the
appropriate
manual:
TRS-XENIX
Operations Guide
TRSDOS-II
and
TRSDOS
—
TRSDOS-II
Reference
Manual
15
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