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9
Setting up your computer and computer
accessories
• Set up the monitor so the top is no higher than eye level, the monitor controls are within
reach, and the screen is tilted to be perpendicular to your line of sight.
• Place your keyboard and mouse at a comfortable distance. You should be able to reach
them without stretching.
• Set paper holders at the same height and distance as the monitor.
Sitting at your computer
• Avoid bending, arching, or angling your wrists. Make sure that they are in a relaxed position
when you type.
• Do not slouch forward or lean far back. Sit with your back straight so your knees, hips,
and elbows form right angles when you work.
• Take breaks to stand and stretch your legs.
• Avoid twisting your torso or neck.
Avoiding discomfort and injury from repetitive strain
• Vary your activities to avoid excessive repetition.
• Take breaks to change your position, stretch your muscles, and relieve your eyes.
• Find ways to break up the work day, and schedule a variety of tasks.
Protecting from power source problems
During a power surge, the voltage level of electricity coming into your computer can increase
to far above normal levels and cause data loss or system damage. Protect your computer and
peripheral devices by connecting them to a surge protector, which absorbs voltage surges and
prevents them from reaching your computer.
An uninterruptible power supply (UPS) supplies battery power to your computer during a power
failure. Although you cannot run your computer for an extended period of time with a UPS, a
UPS lets you run your computer long enough to save your work and shut down your computer
normally.
Warning
High voltages can enter your computer through both the power cord and the
modem connection. Protect your computer by using a surge protector. If you have a
telephone modem, use a surge protector that has a modem jack. If you have a cable
modem, use a surge protector that has an antenna/cable TV jack. During an electrical storm,
unplug both the surge protector and the modem.
8511879.book Page 9 Thursday, February 15, 2007 10:39 AM
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