IBM Aptiva Handbook page 19

$UUDQJLQJ \RXU ZRUN DUHD
When you arrange your computer, position your monitor and
keyboard directly in front of you. Place the mouse close to the
keyboard so that you can use it without stretching or leaning
over to one side.
The system unit is usually kept on the floor under or beside
your desk. Be sure to place it in an area that will not block the
space you need to put your legs under the work surface.
Organize your desk to reflect the way you use work materials
and equipment. Place the things that you use most regularly,
such as a mouse or telephone, within the easiest reach.
&KRRVLQJ D FKDLU
W You should adjust your chair so that your tighs are
horizontal and there is support for your lower back. Your
feet should rest flat on the floor or a foot rest when you
are seated and using your keyboard.
3RVLWLRQLQJ WKH PRQLWRU
W Place the monitor at a comfortable viewing distance. You
can also use the length of your arm to determine a
comfortable viewing distance.
W Adjust your monitor so the top of the screen is at, or
slightly below, eye level.
W Keep the screen clean. For cleaning instructions, refer to
the documentation that came with your monitor.
W If you place the monitor near window, consider using
curtains or blinds to minimize glare from sunlight. Also be
sure to keep the monitor perpendicular to the windows to
reduce glare when the curtains or blinds are open. Try to
avoid placing the monitor directly in front of a window.
W Use dim room lighting. If you need more light on your
work, you should position the light so it shines on your
work surface but not onto the monitor screen.
W Use the monitor controls to adjust the screen's brightness
and contrast levels to a comfortable level. You may have
to do this more than once a day if the light in the room
changes. For monitor control adjustment instructions,
refer to the documentation that came with your monitor.
W When your eyes focus on a specific object for a long
period of time, they may become tired. If you spend a lot
of time looking at your screen, remember to take frequent
breaks. Look up periodically and focus on an object that
is further away. This will give the muscles in your eyes a
chance to relax.
xix