What is Android Software Development Kit (SDK)

Android is an operating system for small electronic device such as cellphone,internet TV, PDA etc. Android developed by Google and android based upon the Linux kernel and GNU software. Android is open source operating system.

A software development kit (android SDK) that enables android developers to create applications
for the Android platform. The Android SDK includes many sample projects with theirs source code,
development tools, an emulator, and a very smart libraries to build Android applications.
Applications are written using the Java programming language and run on Dalvik,
a custom virtual machine designed for embedded use which runs on top of a Linux kernel.

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Android OS versions list and versions name

Android OS versions lists given below. Android name and android versions given together. Android releases versions 1.0 and 1.1 were not publicly named. Though, Android 1.1 was on the inside referred to as "Petit-Four"

Cupcake:

• Android versions 1.5

Donut:

• Android versions 1.6

Eclair:

• Android versions 2.0, also 2.0.1
• Android versions 2.1
• Android versions 2.1-update1

Froyo: (tiny for "frozen yogurt")

• Android versions 2.2, also 2.2.x updates

Gingerbread:

• Android versions 2.3, also 2.3.x updates

Honeycomb:

• Android versions 3.0, also 3.0.x updates
• Android versions 3.1
• Android versions 3.2

Ice Cream Sandwich:

• Android versions 4.0

Jelly Bean

• Android versions 4.1

Future Versions

• Key Lime Pie (Not confirmed)

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OS (Operating System)

Operating System : Operating system means a set of rules about operating something. As a cell phone user and as a PC user, you need to know about operating system first to properly use it.When you need to operate something you have learn it. There are many Cell phone and PC operating system runs on various platform.

Example:

IBM PC runs on Microsoft Windows, Linux, Dos, Unix etc,
Apples Computer generally runs on MAC OS,


Nokia Cell Phone runs on Symbian, Nokia, Windows,
Samsung Runs on Android,
Htc Runs on Android,
Apple Iphone runs on IOS,

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Open Source ( What is this?)

As a user of a software you can not see the original programing code of an application. Because when a program code written by a program language it is need to be complied. With out compile a program can not run. When a programer write a program in a human understandable program language the hardware can not understand it, to execute that program you need to convert those human understandable language to machine language. The conversion a program from program language code to machine language is called compile process. A user can not understand  Machine language so that he can not know the original program language code and he can not make any change in the program. The concept of Open Source comes to break the limitation of a program source code. Open Source gives user to read the original source code and grant right to change the program as user demand.

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Why Android?

There are many reason to choose Android.
 As a Cell phone user:

1. Android is open source so it is widely used OS and there are many application available on market for Android OS.

2. Android developed by many cellphone company and used on many Cell phone. So as a user you can choose your desire Cell phone brand .

3. Android is Linux based open source OS so generally more secure than other OS.

As a Cell phone manufacturer :


1. Android is platform independent OS , So any Cell phone manufacturer can use it easily.  

2. Android is Linux based OS so it is more stable and user friendly than other Cell phone OS.

3. Android is free and open source so any Cell phone or small electronic device manufacturer can use Android without any cost and can change at as their demand without any limitation.

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What is Android?

Android is an operating system developed by Google. Android is a Linux based Operating system and it is the most widely used Cell phone Os. There are many Cell phone and small electronic device (such cell phone,mid,tablet PC) available on market which already used Android Os. There are more than 600000 application available on the market so these day Android is most widely used and most popular Os. Android is open source so there is no fee to pay Google for using Android on any small electronic  device.

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