Commodore 1351 Benutzerhandbuch Seite 31

Introduction
The
Commodore
1351
Mouse™
is
a
controller
designed
for
use
with
the
Commodore 64®
or
Commodore
128™ computers.
It
features
two
buttons
on
the
top,
and a
ball
on
the
underside
that
is
rolled
upon a
flat
surface
to
manipulate
onscreen
activity.
The
mouse
has two
modes
of
operation
—
joystick
mode
and
proportional
mode.
In
joystick
mode,
the
mouse
emulates a
joystick
and can be
used
with
all
joystick-compatible software.
In
this
mode,
the
left
button
is
the
fire
button
and
the
right
button
is
usually
ignored.
In
proportional
mode,
the
mouse
uses a
new
technique
to
communicate
mouse movement
to
the
controlling
application
software.
That
requires the software
to
know
the
mouse
is
the-
re
and
how
to
read
it.
For
example,
the
GEOS™
operating
system can use
many
different
input
drivers.
One
of
them
is
the
Commodore Mouse
driver,
which can be used
with the 1351
in
proportional
mode.
The
1351 provides
a
proportional
mode
so
that applications
can have a
fast,
responsive
pointer
that
moves
easily
on
the
screen. Joystick
mode
acts
as a
fallback
for
those
applications
that don't
have
installable
device
drivers.
You
can
therefore
use
the
mouse
as a
joystickfor older software,
and
take
advan-
tage
of
the
benefits
provided
by
proportional
mode
with
newer
applications.
The mouse
automatically
powers up
in
proportional
mode. To
choose
joystick
mode,
plug the
mouse
into
either joystick port
on
the side
of
the
computer and
hold
down
the
right
button
as
the
computer
is
powered
up.
English
27