About Android Platform

Android Handset runs a Linux operating system as background and upon which android application runs. Each application runs in separate process in Dalvik virtual machine for each application an instance of Dalvik virtual machine is created.
Dalvik Virtual Machine is like the Java Virtual Machine. The Design of Dalvik Virtual Machine is optimized to be able to execute on Mobile Device. Dalvik Acquire Less Memory so that multiple instance of dalvik can be created and run simultaneously in the mobile device.

When Any application is installed in the mobile device the Linux operating system create a new user profile for that perticular application and an instance of Dalvik Virtual Machine. Each Application runs on its own Dalvik Virtual machine  as separate process and its own files it doesnt share anything. so there is less chance of "Bricking" ( Bricking is called the mobile crash).

How Android Manage Security for users personal information ? 

To access the shared resources on the mobile device. Android Application requires to get  explicit permission to access those resources. such as camera , to make call , Bluetooth , access personal information , current location etc.

if any application A want to share its data with  application B. B access As data by using URI. for e.g. Application A manage Contact information birth data  etc and if A want to share these information to other then it create the URI for accessing these data. rather than giving control of full application.

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5 Cool Facts about Sony Smartphone Xperia Z

Sony smartphone, SONY Xperia Z has been widely circulated in 60 countries around the world Through Z Xperia , Sonys attempt to catch up with them compared to Samsung and Apple - which dominate the smartphone sales in 2012.
Xperia Z is also one of the most gadget -awaited consumer . No doubt , Sony was quite pleased with initial sales in Japan and France . How not , NTT DoCoMo has sold over 140 thousand units in the week beginning Z Xperia smartphone sales waterproof and dust are in Japan . And in France , Sony mentioned that the stock was sold out within a day .

Then , why Z Xperia handset predicted would be sold ? If you want to buy Xperia Z , you should first know five important facts about Xperia Z.

1 . Sony Xperia Z has bagged IP55 and IP57 certification , which makes it waterproof and dust . Sony Xperia Z states that can be dipped into the deep water of no more than one meter for 30 minutes . Although waterproof , Sony smartphone Xperia Z does not recommend use in sea water because it can damage the body feared Xperia Z.

2 .Sony smartphone Xperia Z 5 inch screen resolution of 1920 x 1080 pixels . This means that the screen has support Full HD . The clarity and sharpness of the screen is also reinforced by the Mobile Bravia Engine 2 technology , a technology which has been used in the production of Sony flat screen TV : Sony Bravia .

3 . To ensure good performance , Sony immerse four core processor Snapdragon S4 Pro 1.5 GHz Qualcomm . This processor is claimed to provide high performance and fast .

4 . Internal memory available on sony smartphones Xperia Z is 16 GB . But do not be upset , because he has an external memory slot which can be expanded up to 32 GB ( microSD ) .

5 . Sony has experienced in audio technology . He is known to have the most famous music player , Walkman . The Japanese company also has experience in creating headphones / earphones that have a clear voice . sony smartphone, the Xperia Z , Sony Walkman music player improve . Some of the features included to deliver crystal clear sound and high-tech is ClearAudio + , surround sound mode so that the resulting sound nicer Xperia Z and coherent , clear stereo , and xLOUD to improve the internal audio capabilities .

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