Google revealed Android operating system 2007 based on Linux primarily reflected for tablets and smart phone initially developed by Android Inc and Google purchased it in 2005. This OS also allows to be used in other electronic devices such as eBook Reader, Smart TV, Smart Books, Net books etc
Google also founded an Open Handset Alliance which is a consortium of 86 telecommunications,
hardware and software companies dedicated to enhance open standard for mobile devices under
Apache License. Companies such as HTC and Samsung, wireless carriers like Sprint Nextel, T-Mobile and chipset maker such Qualcomm and Texas Instruments are associated with Android.
All applications are coded in java using Android Software Development Kit and are available for
download with Google Play, Amazon Appstore and other web site as you search with any search engine.
In the first quarter of 2012, Android had smart phone market share of 68% worldwide. Android offers more than 600000 applications and it exceeds total download from just Google Play is around 20 billion installed on more than 400 million devices around the world.
Android is total Linux based and consists of kernel. Kernel is a software component bridged between
application layer and hardware layer. As it is developed in java it uses just in time compilation which
translates java codes into byte code. Android hardware platform is ARM architecture.
Android has a Sandbox concept, applications runs in Sandbox and restrict access to rest of the system resources. Access to the system resources depend on what permission user provide while installing a particular app. You don’t need an antivirus in such case as Sandbox will be ineffective and it will not allow an antivirus for deeper scan.
Tapping and swiping is really easy with the latest version of Android, the respond to the user input is
immediate and quick. Additional user action performance improved with the internal hardware such as accelerometer, gyroscope and proximity sensor. The home screen of an Android phone can be found very similar to the desktop including widgets and app. App are app icons and widgets point to live or auto update content such as weather forecast, emails notification, news and many such stuff.
Status bar is important as displays the device information and its connectivity. Status bat can be moved across the screen and fit anywhere. Calling back is very easy to the missed calls by following missed call notification. All notifications are persistent until you read or dismiss them.