Android is an open source operating system developed by Android Inc. which was later acquired by Google. It is based on the Linux kernel and primarily written in Java. Some key points about Android include that it was designed for touchscreen devices, allows multi-tasking, and has a large app library available via the Google Play store. Android continues to grow in popularity and usage worldwide since its launch.

3.  Android is an open source operating system
and releases the code under the Apache
Licence.
 In 2008, Google partnered with T-Mobile to
launch the first-ever Android smartphone,
the G1 also known as HTC Dream.
 It is designed specially for touchscreen
mobile devices(Smart phones and Tablets).

4. Nick
Sears
Rich
Miner
Andy
Rubin
Chris
White
Android was developed by the Andy Rubin, Rich
Miner, Nick Sears and Chris White in California in
October 2003.

5. It’s most app development is done in Java
(Java access to C Libraries via JNI (Java
Native Interface)
It is based on Linux kernel.
Android Inc was purchased by the Google
in August, 2005 for $50 million .

6.  Android based phones works as a Mini Computer.
 Android provides Multi-Tasking features to Users.
 It provides better User Interface than other mobile
phones.
 Android is developed in such a way to supports a
lot of formats of any Documents.
 User gets millions of applications that user can not
get in any other mobile operating system.

7.  Using Android Development Tools (such as
SDK) we can easily develop our own android
application.
 Android supports wireless communication
using:-
 3G Networks
 4G Networks
 802.11 Wi-Fi Networks
 Bluetooth Connectivity

9. 0
500
1000
1500
2000
2500
3000
3500
2009 2010 2011 2012 2013 2014
2009
2010
2011
2012
2013
2014
Available Applications in
thousand
0
20
40
60
80
100
120
140
2010 2011 2012 2013
1
19
45
138
Downloads in Billions

11.  It is a official app store for Android Operating System.
 It is developed by google by merging Android Market
and Google Music on March 6, 2012.

14. Eclipse IDE
Android
SDK
Android
Emulator
Android
Mobile
Device

15.  Applications are written in Java or Python.
 Development is done in Android SDK.
 Applications can be developed in Eclipse using
Android Development Tool (ADT) plugin.
 The Eclipse is officially supported integrated
development environment.
 Development is open to all the members of
OHA.

16.  OHA is abbreviation of Open Handset Alliance.
 This group of companies are allowed to use source
code of Android and develop application.

18. REASON
ONE
REASON
TWO
REASON
THREE
CustomizationRestrictionsApps, files & Media Management

20. Spice Dream Uno
 Launched on 15 September,2014 at New Delhi.
 The search giant announced the first Android One
smartphones - the Karbonn Sparkle V, Micromax Canvas
A1 and Spice Dream Uno.
 Android One’s biggest features: 2-year software support,
carrier billing for apps
Karbonn Sparkle VMicromax Canvas A1

21.  There are chances of use of Android OS will not
limited to mobile and tablet .
 Android Mobile sales becomes more then
iPhone in next two years.
 Android may become the widely used operating
system in world.
 Google may launch another version of android
that starts L and its name may be Android 5.0
Lollipop or Android 5.0 Lime Pie.

22.  Android operating system uses more
amount of battery as compared to normal
mobile phones.
 As we call Android is world of applications
we continuously need to connected with the
internet which is not possible for all the
users.
 Making source code available to everyone
inevitably invites the attention of hackers.

23.  http://en.wiipedia.org
 http://techguru2012.blogspot.in
 http://www.ndtv.com
 Images are referred from Google images.