Apple 17-inch MacBook Pro (User’s Guide) - Manual (Page 27)

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2
Getting to Know Your
MacBook Pro
This chapter introduces important basics about your
MacBook Pro.
Whenever you stop using your MacBook Pro, wait a few moments to let the hard disk
and any optical disc (such as a CD or DVD) in your drive stop spinning before you
transport the computer. Avoid jostling or bumping your MacBook Pro while discs are
spinning.
Note: Your MacBook Pro uses Sudden Motion Sensor technology to help protect the
hard disk if the computer is dropped or shaken. See “Understanding Sudden Motion
Sensor” on page 74 for more information.
When you use MacBook Pro or charge its battery, it is normal for the bottom of the
case to get warm. For prolonged use, place your MacBook Pro on a flat, stable surface.
The bottom of the case is raised slightly to allow airflow, which helps keep the unit
within normal operating temperatures.
You might hear system sounds during startup and when using your hard disk and
SuperDrive. After the MacBook Pro runs for some time, small fans might turn on to cool
it, producing a faint sound. System sounds such as these are part of the computer’s
normal operations.