Some key features that distinguish this computer from earlier PowerBook models include: ” 17-inch TFT widescreen display in aluminum alloy enclosure ” Built-in Bluetooth ” Built-in AirPort Extreme card ” Added FireWire 800 port ” Uses double-data rate (DDR) memory ” Fiber optic backlit keyboard with ambient light sensor New Procedures If you are familiar with taking apart notebook computers, you will notice some differences with this model: ” The keyboard is secured with screws accessible from under the top case. ” Memory cards are easily accessible from the bottom of the computer. ” The AirPort Extreme card is not user replaceable. ” The quantity and types of screws differ from earlier models.
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