Kindle Fire, Full Color 7″ Multi-touch Display, Wi-Fi
March 19, 2012 | Posted by Kindle Fire, Full Color 7″ Multi-touch Display, Wi-Fi
- 20 million movies, TV shows, songs, magazines, and books
- Thousands of popular apps and games, including Netflix, Hulu Plus, Pandora, and more
- Amazon Silk – ultra-fast web browsing over built-in Wi-Fi
- Free cloud storage for all your Amazon content
- Vibrant color touchscreen with extra-wide viewing angle
- Fast, powerful dual-core processor
- Favorite children’s books, graphic novels, and magazines in rich color
- Amazon Prime Members enjoy unlimited, instant streaming on thousands of popular movies and TV shows.
- Amazon Prime Members choose from over a hundred thousand books to borrow for free.
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Technical Details
Display 7″ multi-touch display with IPS (in-plane switching) technology and anti-reflective treatment, 1024 x 600 pixel resolution at 169 ppi, 16 million colors. Size (in inches) 7.5″ x 4.7″ x 0.45″ (190 mm x 120 mm x 11.4 mm). Weight 14.6 ounces (413 grams). System Requirements None, because it’s wireless and doesn’t require a computer. On-device Storage 8GB internal (approximately 6GB available for user content). That’s enough for 80 apps, plus 10 movies or 800 songs or 6,000 books. Cloud Storage Free cloud storage for all Amazon content Battery Life Up to 8 hours of continuous reading or 7.5 hours of video playback, with wireless off. Battery life will vary based on wireless usage, such as web browsing and downloading content. Charge Time Fully charges in approximately 4 hours via included U.S. power adapter. Also supports charging from your computer via USB. Wi-Fi Connectivity Supports public and private Wi-Fi networks or hotspots that use 802.11b, 802.11g, 802.11n, or enterprise networks with support for WEP, WPA and WPA2 security using password authentication; does not support connecting to ad-hoc (or peer-to-peer) Wi-Fi networks. USB Port USB 2.0 (micro-B connector) Audio 3.5 mm stereo audio jack, top-mounted stereo speakers. Content Formats Supported Kindle (AZW), TXT, PDF, unprotected MOBI, PRC natively, Audible (Audible Enhanced (AA, AAX)), DOC, DOCX, JPEG, GIF, PNG, BMP, non-DRM AAC, MP3, MIDI, OGG, WAV, MP4, VP8. Documentation Quick Start Guide (included in box); Kindle Fire User’s Guide (pre-installed on device). Additional information available online. Warranty and Service 1-year limited warranty and service included. Optional 2-year Extended Warranty available for U.S. customers sold separately. Use of Kindle is subject to the terms found here. Included in the Box Kindle Fire device, U.S. power adapter (supports 100-240V), and Quick Start Guide. Revolutionary Cloud-Accelerated “Split Browser”
Modern websites are complex. A typical web page requires 80 files served from 13 different domains. This takes a regular browser hundreds of round trips, and adds seconds to page load times.Amazon Silk is different in a radical new way. When you use Silk, without thinking about it or doing anything explicit, you’re calling on the computing speed and power of the Amazon Web Services cloud (AWS). We’ve refactored and rebuilt the browser software stack to push pieces of the computation into the AWS cloud. This lets Silk do more work, more quickly, and all at once. We call this “split browser” architecture.Silk browser software resides both on Kindle Fire and on the massive server fleet that comprises the Amazon Elastic Compute Cloud (Amazon EC2). With each page request, Silk dynamically determines a division of labor between the mobile hardware and Amazon EC2 (i.e. which browser sub-components run where) that takes into consideration factors like network conditions, page complexity and the location of any cached content.
Shorter Transit Times
Amazon EC2 is always connected to the backbone of the Internet where round-trip latency is 5 milliseconds or less to most web sites rather than the 100 milliseconds that’s typical over wireless connections. AWS also has peering relationships with major internet service providers, and many top sites are hosted on EC2. This means that many web requests will never leave the extended infrastructure of AWS, reducing transit times to only a few milliseconds.
Computing Power in the Cloud
EC2 servers have massive computational power. On EC2, available CPU, storage, and available memory can be orders of magnitudes larger than on mobile devices. Silk uses the power and speed of the EC2 server fleet to retrieve all of the components of a website simultaneously, and delivers them to Kindle Fire in a single, fast stream. Transferring computing-intensive tasks to EC2 helps to conserve your Kindle Fire battery life.
Persistent Connections
A typical web request begins with resolving the domain names associated with the server and establishing a TCP connection to issue the http request. Establishing TCP connections for each request consumes time and resources that slow down traditional browsers. Silk keeps a persistent connection open to the backend server on the AWS cloud so that there is always a connection at the ready to start loading the next page. In addition, the Silk backend server keeps persistent connections open to the top sites on the web. This approach further reduces latency that would otherwise result from constantly establishing connections. Further, the connection between Silk and the backend infrastructure uses a pipelined, multiplexing protocol that can send all the content over a single connection.
Page Indexes
Traditional browsers must wait to receive the HTML file in order to begin downloading the other page assets. Silk is different because it learns these page characteristics automatically by aggregating the results of millions of page loads and maintaining this knowledge on EC2. While another browser might still be setting up a connection with the host server, Silk has already pushed content that it knows is associated with the page to Kindle Fire before the site has even instructed the browser where to find it.
Machine Learning
Finally, Silk leverages the collaborative filtering techniques and machine learning algorithms Amazon has built over the last 15 years to power features such as “customers who bought this also bought…” As Silk serves up millions of page views every day, it learns more about the individual sites it renders and where users go next. By observing the aggregate traffic patterns on various web sites, it refines its heuristics, allowing for accurate predictions of the next page request. For example, Silk might observe that 85 percent of visitors to a leading news site next click on that site’s top headline. With that knowledge, EC2 and Silk together make intelligent decisions about pre-pushing content to the Kindle Fire. As a result, the next page a Kindle Fire customer is likely to visit will already be available locally in the device cache, enabling instant rendering to the screen.
List Price: $ 200.00
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