Radio Shack TRS-80 model III Owner's Manual page 5

OWNER'S
MANUAL
To
Our
Customers
Congratulations
on your purchase of
the
Model
III
Disk System.
We
think
it's
a
valuable
tool
which
will
save
you work
as
well
as
give
you
hours of
enjoyment
(or
maybe
both
at
once). You'll
have
all
the
power
of the
non-disk
Model
III,
plus the following
features:
•
Your
Computer
can
now
be
controlled
by
trsdos
Co]
\
the
powerful
trs-80
Disk
Operating System, trsdos
is
included
on
a diskette with
the
Disk System.
•
Using trsdos, you
can run
a
wide
variety
of
programs, such
as the
Disk basic
interpreter included on
the
trsdos
diskette.
•
Each
"system"
diskette has
approximately 126,720
bytes of storage available
for
your
own
programs and
data;
each
"data"
diskette has
178,944
bytes
available.
•
You
can load
and save
data
at
the
approximate
rate
of
250,000
bits
per second.
•
Your system can continue
to
grow
in
power
and convenience.
When
Radio
Shack
issues
improvements and enhancements
to
the
system programs,
you
can "install"
them
simply by obtaining a
new
release of the
trsdos
diskette.
Model
III
Manuals
Publications related to the
use of
the
Model
III
Disk System;
1
.
Model
111
Disk System
Owner
s
Manual
(this
manual).
We
1
11
call
it
the
"Disk
Manual"
for short.
2.
Model HI Disk System Quick Reference Card.
3.
Model
III
Operation
and
basic
Language
Reference
Manual,
the
"Model
III
Manual"
for short.
4.
Model HI
basic
Quick Reference Card,
For Disk Operation;
This
Disk
Manual
supplements
the
Model
III
Manual. Use
the
Disk
Manual
as
the
primary source of information; we'll
tell
you
when
to
refer
to
the
non-disk
Model
III
Manual.
For Non-Disk Operation:
To
use the
Computer
as
a
non-disk system,
all
you need
is
the
Model
III
Manual.
For
Programming
Information:
The Model
III
Manual
contains
most
of
the
programming information, except
that
which
pertains to
disk input/output. In this
manual,
we
will
assume
that
you