Amazon Kindle is a software and hardware platform developed by Amazon for rendering and displaying e-books and other digital media.[1] Three hardware devices, known as "Kindle," "Kindle 2," and "Kindle DX" support this platform. Kindle software applications exist for Windows, iPhone OS, and BlackBerry, with a Mac OS X version in development. The first hardware device was released in the United States on November 19, 2007.
The Kindle hardware device uses an E Ink brand electronic paper display, and is able to download content over Amazon Whispernet using the Sprint EVDO in the USA or, for newer Kindle 2 devices, AT&T's network which also works internationally.[2] The Kindle hardware device can be used without a computer, and Amazon Whispernet is accessible without any monthly fee.[3] These devices also provide free access to the internet. Kindle devices sold prior to October 19, 2009 were sold only in the United States.[4] On October 7, 2009, Amazon announced an international version of the Kindle 2 with a built-in 3G (HSDPA) and EDGE/GSM wireless modem for connectivity in over 100 countries. This international version went on sale October 19, 2009 worldwide.[5]
On March 3, 2009, Amazon.com launched an application called Kindle for iPhone in the App Store, allowing iPhone and iPod Touch owners to read Kindle content on those devices. Through a technology termed "Whispersync," customers can synchronize reading progress, bookmarks, and other information across Kindle hardware devices and other mobile devices.[6][7]
Amazon announced the Kindle DX on May 6, 2009. This device has a larger screen than its predecessors and supports PDF files natively. It is marketed as more suitable for displaying newspaper and textbook content.[8]
Amazon has released Kindle for PC as a free software download, allowing users to read Kindle books on a Windows PC
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