IBM C50 - Manual (Page 6)

Workplace preparation
This section gives advice on the things that you should
consider before you set up your monitor.
Positioning the Monitor
Choose a suitable place to position the monitor where it is not
near fluorescent desk lighting or any equipment that produces
magnetic fields that could cause interference. Ensure that the
furniture or equipment can support the weight of the monitor.
Allow at least 2 inches (50mm) ventilation space around the
monitor.
Height
The monitor should be positioned so that the top of the screen
is slightly below your eye level when you sit at your
workstation.
Orientation
Choose a position that gives the least reflection from lights and
windows, usually at a right angle to any windows. The monitor
should be positioned directly in front of you so that you do not
have to twist your body. Tilt the monitor to a comfortable
viewing angle.
Working Practices
Rest
Take regular breaks. Vary your posture, and stand up and
stretch occasionally as prolonged use of computer
workstations can be tiring.
Back
You should sit back in the chair and use the back rest.
Hands
Use a light touch on the keyboard, keeping your hands and
fingers relaxed. Allow a space in front of the keyboard to rest
your wrists when not typing. Consider using a wristpad.
Eyesight
Working with monitors, in common with any prolonged close
work, can be visually demanding. Look away from the screen
periodically and have your eyesight checked regularly.
Screen settings
Set the screen brightness and contrast to a comfortable level.
You may have to adjust this as the lighting changes during the
day. Many application programs let you select colour combina-
tions which can help you to view in comfort.
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