Toshiba 1110-S153 User Manual page 33

If you are using an external monitor, the top of the
display should be no higher than eye level.
If you use a paper holder, set it at about the same height
and distance as the screen.
Seating and posture
When using your computer, maintain good posture with your
body relaxed and your weight distributed evenly. Proper
seating is a primary factor in reducing work strain. Some
people find a backless chair more comfortable than a
conventional chair.
Below eye level
Footrest
Correct posture and positioning of the computer
Whichever type you choose, use the following guidelines to
adjust your chair for maximum computing comfort.
Position your chair so that the keyboard is at or slightly
below the level of your elbow. You should be able to type
comfortably with your shoulders relaxed and your
forearms parallel to the floor.
If you are using a conventional chair:
Your knees should be slightly higher than your hips. If
necessary, use a footrest to raise the level of your knees
and ease the pressure on the back of your thighs.
Getting Started
Selecting a place to work
33
Approximately
90-degree angles