Introduction to Android
In this article, I'm explaining the concept of android.
What is Android?
Android is a mobile operating system (OS) based on Linux kernel and currently developed by Google. With a user interface based on Direct Manipulation, Android
is designed primarily for touchscreen mobile devices such as smartphones and tablet computers, with specialized user interface televisions (Android
TV) , cars (Android auto) , and wristwatches (Android Wear).
OS uses touch inputs that loosely correspond to
real-world actions, like swiping, tapping, pinching, and reverse pinching to
manipulate on-screen objects, and a virtual
It’s also widely used in game consoles , digital
cameras, regular PCs and other electronics
Android is a software bunch comprising not only
operating system but also middleware and key applications
Android is the most widely used mobile device and, as of 2014, the highest selling OS
overall. Android devices sell more than Windows,
and Mac OS X devices combined
History of Android:
was founded in Palo Alto of California, U.S. by Andy Rubin, Rich miner, Nick
sears and Chris White in 2003. Later Android Inc. was acquired by Google in
2005. After original release there have been number of updates in the original
version of Android.
Features of Android:
Android comes with an Android market which is
an online software store. It was developed by Google. It allows Android users
to select, and download applications developed by third party developers and
use them. There are around 2.0 lack+ games, application and widgets available
on the market for users.
Android applications are written in java
programming language. Android is available as open source for developers to
develop applications which can be further used for selling in android market.
There are around 200000 applications developed for android with over 3 billion+
downloads. Android relies on Linux version 2.6 for core system services such as
security, memory management, process management, network stack, and driver
model. For software development, Android provides Android SDK (Software
Hardware’s that support Android are mainly
based on ARM architecture platform. Some of the current features and
specifications of android are:
the basics of Android applications:
Android applications are composed of one or
more application components (activities, services, content providers, and
Each component performs a different role
in the overall application behavior, and each one can be activated individually
(even by other applications).
The manifest file must declare all components
in the application and should also declare all application requirements, such
as the minimum version of Android required and any hardware configurations
application resources (images, strings, layout files, etc.) should include
alternatives for different device configurations (such as different strings for
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