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14
Chapter 2: Setting Up Your Computer
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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. For more
information, see “Setting up an uninterruptible power supply” on page 76.
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.