The Features of Nook Color
The Nook Color has a 7-inch 1024×600 resolution multi-touch touchscreen LCD display, as opposed to the original Nook’s 3.5-inch secondary touchscreen.
It does not feature an e-ink display, making it a tablet device as well as an e-reader.
It has a customizable display with color options, six font sizes, and internet browsing over Wi-Fi, as well as a built-in media player that supports audio and video.
The Nook Color allows for the installation of applications approved by Barnes and Noble, with the company planning to provide tools for third-party software developers and an app store.
 Applications pre-loaded on the Nook Color include Chess, Sudoku, crossword puzzles, Pandora Radio, and a media gallery for viewing pictures and video. As with the previous Nook, the Nook Color provides a “LendMe” feature allowing users to share some books with other people depending upon licensing by the book’s publisher.
The purchaser is permitted to share a book once with one other user for up to two weeks. The other users may view the borrowed book using a Nook, Nook Color, or Barnes & Noble’s free reader software on an iPhone, iPod Touch, iPad, BlackBerry, or any other device running Windows, Mac OS X, or Android.
The Nook Color uses a Texas Instruments ARM Cortex-A8 processor running at 800 MHz.
 The device has 8 GB of internal memory supplied by Sandisk, but only 5GB is user-accessible and can store an estimated 6,000 books or 100 hours of audio.
As with the original Nook, microSD and microSDHC memory cards can be inserted to expand the Nook Color’s memory up to 32 GB. Unlike the previous Nook, the Nook Color’s rechargeable battery is not user-replaceable and is expected to last for 8 hours of continuous use with the wireless turned off.
The device includes a built-in speaker and a universal 3.5 mm stereo headphone jack. Supported file formats include EPUB (DRM and non-DRM), PDF, Microsoft Office formats (DOC, DOCX, XLS, PPT, etc.), TXT, JPEG, GIF, PNG, BMP, MP3, AAC, and MP4.
 A firmware update released 25 April 2011 added an app store, email client, Flash support within the web browser, social networking tools, video and audio embedded within books, and performance improvements.