First of all Android is a smart phone device, like Blackberry or Apple i-phone. But the android operation system is the one which make android device is an extra ordinary smart phone device. Android OS is a free and open source operating system. So the Android developers can freely develop their own Android apps and distribute (But to be a registered developer, need to register with developer account which cost 25$ per a year).
Since this is a free OS Android has a rapid growth among mobile phone operating systems in last few years(especially in last year - 2010).
First of all Android is a smart phone device, like Blackberry or Apple i-phone. But the android operation system is the one which make android device is an extra ordinary smart phone device. Android OS is a free and open source operating system. So the Android developers can freely develop their own Android apps and distribute (But to be a registered developer, need to register with developer account which cost 25$ per a year).
Since this is a free OS Android has a rapid growth among mobile phone operating systems in last few years(especially in last year - 2010).
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| Smartphone OS market share 2010-2011 |
Applications for the android devices are mostly developed using Java programming language (There is third party developing framework for develop android apps using C#.net). But the android official blog says they can only develop using Java. For android it is not a .Jar file. It has the extension .apk which mean Android package. In android market you can find thousands of Android apps which 95% of them are freely available. Below graph will give you a clear idea on rapid grow of Android apps.
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| New Android Apps & Games By Month |
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