The Amazon Kindle is a series of e-book readers now in their fourth generation, which enable users to shop for, download, browse, and read e-books, newspapers, magazines, blogs, and other digital media via wireless networking. The hardware platform, developed by Amazon.com subsidiary Lab126, began as a single device and now comprises a range of devices — most using an E Ink electronic paper display capable of rendering 16 shades of gray to simulate reading on paper while minimizing power consumption.Kindle hardware has evolved from the original Kindle introduced in 2007 and a Kindle DX line (with a larger screen) introduced in 2009. Announced in September 2011, the range now includes devices with keyboards (Kindle Keyboard), devices with touch sensitive screens (Kindle Touch), a tablet computer with a reader app and a color display (Kindle Fire) and a low-priced model with an on-screen keyboard (Kindle).
Amazon has also introduced Kindle software for use on various devices and platforms, including Microsoft Windows, iOS, BlackBerry, Mac OS X (10.5 or later, Intel processor only), Android, webOS, and Windows Phone. Amazon also has a "cloud" reader to allow users to read, and purchase, Kindle books from a web browser.
Here are some of the newest types of kindle eBook reader which are called the 4th generation kindles.
The 4th Generation Kindles were announced to the world in September 2011. A surprise for many, the range includes an entry level tablet as well as touch-screen readers and a basic cheap Kindle too.
Kindle 4

The lowest price Kindle to date offers anyone who simply wants to read, the perfect choice of ebook reader. There is no keyboard (only a virtual one on screen if an when required), and no touch-screen navigation or audio output. There also isn’t any 3G option. But what you do get is virtually instant downloads via wi-fi, the same 6″ Pearl E-ink display used in the rest of the range, a 5 way controller plus menu buttons and the paddle side controls.
Kindle Touch Reader
All are about an inch shorter than the keyboard model, and an ounce lighter. There are no buttons, as you use the multi touch display for all navigation. The device has the same 6″ Pearl E-ink display as the rest of the range, but is proving popular as people respond so well to touch-screen devices nowadays.
For now the keyboard models are still available, but we wouldn’t be surprised to see them phased out is sales of the touch-screen model do as well as expected.
Kindle Fire Tablet

The Kindle Fire is a 7-inch Android tablet, and Amazon has decided to go super aggressive on the price. You’ll be able to pick one up for $199 with 30-days of free Amazon Prime two-day shipping. After that, you’re paying $79 for it.
While cheap at under $200, there isn’t much in the way of features. The Kindle Fire does not have a camera or a microphone and will be WiFi-only for now. It is being seen as a small step up from the Kindle for those who want color, video, and proper touchscreen web access.
As for the interface, Amazon has apparently added its own layer of navigation on top of the default Android interface which will no doubt favor access to other Amazon services. Digital video, music, and access to e-books are expected to be key services both advertised for and accessible on the Fire.
Kindle Keyboard
Amazon will continue to sell the existing Kindle, complete with its physical keyboard, as the Amazon Kindle Keyboard. Although the retailer has announced new touchscreen Kindles, as well as an entry-level model at $79, there’s still an option for those who want to enter text without pecking at the touchscreen or shifting a cursor around an on-screen board with a D-pad.
For more information or purchasing please visit these websites:
Sources:
https://kindle.amazon.com/
http://en.wikipedia.org
http://digitaldesi.com/
http://www.amazopia.com
http://www.geek.com
http://digitaldesi.com/
http://www.amazopia.com
http://www.geek.com
