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C901-B 7" Android 2.1 Resistance Touch Screen Tablet PC
Surprises are all around!The C901-B Android 2.1 Tablet PC carries the Google Android 2.1 system , and is provided with DDR2 256M RAM. Adopt WIFI and 3G, provides more choice for wireless network. Its android 2.1 OS also can update to android 2.2 OS.s
The other highlight of the Touch Screen Tablet PC is its stylish appearance! The workmanship of this Tablet PC gets the high grade. Feature smooth streamline design, elegant and decent, the Tablet PC will surely attract your eyeballs at the first look!
Google Android 2.1 OS,can update to android 2.2RK2818 efficient master chip, 256M DDR27inch 16 million color TFT touch screen800 x 480 pixel resolution, provides HD picturesWi-Fi wireless network, G-sensor, built-in 3GBuilt-in 8GB Memory Storage, extended to 32GSupport external TF card up to 32GBG-Sensor gravity sensing720P HD video playback
Specifications:Product
Model
C901
Operating System
Android 2.1
ARM
DDR2 256M
Processor
RK2818A(ARM 600MHz+DSP 550MHz)
Storage
8GB
Dimension
196.6mm×111.4mm×12.6mm
Color
White
Screen
Screen Size
7.0 inch 16 million color
Screen Resolution
800 × 480
Backlight Technology
LED Backlight
Entertainment
Video
Support（1280*720P 30fps）WMV、AVI、RM、RMVB、MP4、MOV、FLV、3GP、MKV
Audio
Support MP3、WMA、WAV、AAC、OGG、APE、FLAC
Photo
Support JPG（8000×8000）、JPEG（8000×8000）、BMP、GIF(1000*1000)、PNG(960*720)
E-book
Support PDF、TXT、EPUB、FB2、PDB and so on
Language
Simplified Chinese, Traditional Chinese, English and other languages
WiFi
Support WiFi 802.11b/g and 3G(TD-SCDMA/WCDMA/
USB
support HOST OTG mode connected U disk, 3G card, Ethernet, mouse, keyboard, do not support the HUB
Expansion Card
support TF (Micro SD) card, max extended to 32G
Functions
Apps
QQ, MSN ,IREAD,OFFICE,GAME,STOCK etc.
Game
Internal or third party software
Document Management
File browser, copy, delete etc.
Package
Included
1x ACHO C901 Tablet PC
1x Earphone
1x Charger
1x Manual
Capacitive Touch Screen
A capacitive touchscreen panel consists of an insulator such as glass, coated with a transparent conductor (mostly indium tin oxide). As the human body is also a conductor, touching the surface of the screen results in a distortion of the body's electrostatic field, measurable as a change in capacitance. Unlike its resistive counterpart, capacitive touch screens must be touched by a human finger or some sort of conductive device being held by a human hand. The figure on the right from Electronic Design shows how does capacitive screens work. Examples of devices with capacitive touchscreens are the iPhone and the T-Mobile G1.
Advantages:- Higher clarity display (up to 90% optical transparency)
- Supports multi-touch
- High touch resolution
- High sensitivity
Disadvantages:
- Needs a human finger to register input. It is not possible to use this screen wearing gloves
- Cannot be used in all weather scenarios
On touchscreen displays, multi-touch refers to the ability to simultaneously register three or more distinct positions of input touches. It is often used to describe other, more limited implementations, like Gesture-Enhanced Single-Touch, Dual-Touch or real Multi-Touch.- The most popular form are mobile devices (iPhone, iPod Touch), touchtables (Microsoft Surface) and walls. Both touchtables and touch walls project an image through acrylic or glass, and then back-light the image with LEDs. When a finger or an object touches the surface, causing the light to scatter, the reflection is caught with sensors or cameras that send the data to software which dictates response to the touch, depending on the type of reflection measured. Touch surfaces can also be made pressure-sensitive by the addition of a pressure-sensitive coating that flexes differently depending on how firmly it is pressed, altering the reflection
- Handheld technologies use a panel that carries an electrical charge. When a finger touches the screen, the touch disrupts the panel's electrical field. The disruption is registered and sent to the software, which then initiates a response to the gesture
- In the past few years, several companies have released products that use multi-touch. In an attempt to make the expensive technology more accessible, hobbyists have also published methods of constructing DIY touchscreens
How to Program Apps for the Android
Google's new mobile handset operating system will bring the same revolutionary mobile application development for android that happened has evolved with iPhone and the iPhone app store. For the first time any Java developer can build and sell Android apps and make money with Android application development. While the Droid apps are programmed in JAVE, if you are already a programmer in any programming language you should be able to build on the Android platform with Android software to create Android applications- Use the Google Android Developer Resources. The Android Developer guides have received high praise for their crisp explanations, tutorials and practice sessions. Start at the Android App Developer Resources website for both information and for tools. All tools downloads are available at this site
- Visit the Android Apps Market to do some research. Once you feel you can build an Android application, go to the Android Market to get an idea of the breadth of functionality that others have programmed that you can reassemble into your new mobile application. Also, spend some time on the tabs labeled, 'top paid' and 'top free'. This will give you an idea of where the consumer interest is for mobile applications. Are the highest downloads games? Or are the highest Android downloads geospatial applications with Google maps? Look at the broad categories and functions that people are downloading from the Android Market
- Build your first Android Application. The only way to do this is to start. With the tutorials and practice completed. With the developer environment downloaded and a simple first project identified. Start developing. If you need help, go to the Android Developers Blog but also look for Android Developer Communities that are springing up across the internet. There are a lot of people who are happy to share their experiences
Pakage Included:
- 1 x Tablet PC
- 1 x A/C adapter
- 1 x USB cable
- 1 x User Manual
- 1 x Earphone
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