An e-book device, sometimes also called an e-book reader, is a device used to display e-books. It may be a device specifically designed for that purpose, or one intended for other purposes as well. The term is restricted to hardware devices, not software programs.
Specialized devices have the advantage of doing one thing well. Specifically, they tend to have the right screen size, battery lifespan, lighting and weight. A disadvantage of such devices is that they are often expensive when compared to generic devices such as laptops and PDAs.
LCD and other screen technologies
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