22 A Tour of Your Computer
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FAN — The computer uses fans to create airflow through the vents, which prevents the computer from
overheating.
OPTICAL DRIVE BAY —
You can install devices such as a DVD drive or other optical drive in the
optical drive bay. For more information, see "Optical Drive" on page 88.
BATTERY CHARGE GAUGE — Provides information on the battery charge. For more information, see
"Using a Battery" on page 27.
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