Amazon Kindle is a series of e-readers designed and marketed by Amazon.Amazon Kindle devices enable users to browse, buy, download, and read e-books,newspapers, magazines and other digital media via wireless networking to the Kindle Store.The hardware platform, which Amazon subsidiary Lab126 developed, began as a single device in 2007.
Currently, it comprises a range of devices, including e-readers with E Link Electronics paper displays and Kindle applications on all major computing platforms. All Kindle devices integrate with Kindle Store content and, as of March 2018, the store had over six million e-books available in the United States.
Amazon released the Kindle, its first e-reader on November 19, 2007 for $399.It sold out in 5 1/2 hours.The device remained out of stock for five months until late April 2008.
The device featured a six-inch (diagonal) four-level grayscale E Ink display, with 250 MB of internal storage, which can hold approximately 200 non-illustrated titles.It also has a speaker and a headphone jack for listening to audio files.It has expandable storage via an SD card slot. Content was available from Amazon via the Sprint corporation US-wide EVDO 3g data network, via a dedicated connection protocol which Amazon called Whispernet.Amazon did not sell the first-generation Kindle outside of the US.