Google acquired Android Inc. in 2005 and launched the Android mobile operating system in 2007 with the Open Handset Alliance, including companies like Qualcomm. Android uses the Linux kernel for core functions and relies on Java for application development. It has an open source model and uses components like SQLite for data storage, Dalvik virtual machine, and integrated browser. While popular for its openness and customization, Android faces security and compatibility challenges. Overall it has become very successful with the mobile market.

1. presented by
T.V.SaiPallavi.
098B1A0518
Guide :Siva Kumar.p
by

2. Presented by
T.V.SaiPallavi.

4. INTRODUCTION
The birth of ANDROID:
 Google acquires android in July 2005.
 On 5 November 2007,the Open Handset Alliance, a
consortium of several companies which include:

5. OHA Included Companies

6. Qualcomm MSM7K
 Application framework  Connectivity
 Dalvik virtual Machine  Messaging
 Integrated Browser  Web Browser
 Java Virtual Machine
 Optimized Graphics
 Media Support
 SQLite  Additional Hardware Support
 Handset Layout  Development Environment
 Data storage

7. Description
• Operation:
Android Runtime:
o A set of core libraries.
o Runs it own process.
o Dalvik VM relies on the Linux kernel.

8. Operation of Linux kernel
o Android relies on Linux version 2.6 for core system
services such as
1.Security.
2.Memory management.
3.Process management.
4.network stack.
5.driver model.
o Designed to simplify the reuse of components.

9. Architecture

10. Working Proceedure
•Android Runtime
•Application Framework
•Application Layer

11. Software Development Kit
Includes
• Debugging tools
• Libraries
• Device emulator
• Documentation
• Sample projects
• JDK
• Apache Ant
• Python 2.2
• Eclipse 3.2

12. Current status:
Survey says that android mobiles are more active sales in market.
In smart phones platform android covers major part.

13. PROS:
 Allow access to core mobile devices.
 All applications are equal.
 Break down boundaries.
 Fast and easy.

14. CONS:
Security.
 Open Source.
 Login.
 Incompetence.

15. CONCLUSION:
 ANDROID is now becoming the best among all the mobile
operating systems.
 ANDROID is being used in 170 models of different 27 Mobile
Companies.
It surely takes lot of time for other OS to create such a rapid
revolution.

16. ANY
QUERIES…
?