Preface enables a secondary LCD screen to display data and pictures and run other useful mini-applications (e-mail, games and music) even when a Preface-enabled notebook is powered down.

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If so, the possibilities include anything from a new version of the iPod music player to fresh versions of its hot-selling notebook computers.

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Its flash cards are ubiquitous in digital cameras and its memory chips are found in notebook and netbook computers, smartphones and digital music players.

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In addition, content-sharing software lets users wirelessly share videos, photos, and music from other DLNA-enabled devices to then enjoy on the notebook.

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Apple updated its poor-selling Apple TV set-top box, iPod Touch music player and the iPhone, and built out Apple's lineup of notebook computers with a new, lightweight laptop.

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Today, music is stored on a variety of digital devices in the home including desktops, laptops, notebook PCs, network storage drives, tablets and smart phones.

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