Android is an open-source software stack for mobile devices that includes an operating system, middleware and key applications. It is developed by the Open Handset Alliance led by Google. The document discusses the introduction of Android, its features, versions, architecture, uses and the Android Market. Some key points are that Android allows storage using SQLite, supports connectivity technologies like Bluetooth and WiFi, and has a layered architecture consisting of applications, framework, and Linux kernel components. It aims to provide an open platform for developers and users.

1. Presented by:
Arpita Saxena

2. ANDROID
Main Topics
INTRODUCTION
FEATURES
VERSIONS
ARCHITECTURE
USES
ANDROID MARKET
CONCLUSION

3. INTRODUCTION
• Android is a software stack for mobile devices that includes an
operating system, middleware and key applications.
• It is developed by Open Handset Alliance led by
• Google purchased the initial developer of the
software, Android Inc., in 2005.
• Android Distribution in 2007 was announced with the
founding of Open Handset Alliance.
• Google releases the Android code as open source, under the
Apache license.
• Android is open , free and 100% java phone.

4. Open Handset Alliance is a consortium of
86 companies.

5. FEATURES
• Storage - SQLite, a lightweight relational database , is used for data
storage purposes.
• Connectivity - Android supports connectivity technologies including
GSM/EDGE, IDEN, CDMA, EV-DO, UMTS, Bluetooth, Wi-Fi, LTE, NFC
and Wi MAX .
• Messaging - SMS and MMS are available forms of
messaging, including threaded text messaging.
• Multiple language support
• Web browser
• Java support

6. FEATURES (cont.)
• Voice based features - Google search through voice has been
available since initial release. Voice actions for
calling, texting, navigation, etc. are supported on Android 2.2
onwards.
• Media support - MP3, MPEG-4, AAC, WAV, PNG, JPEG , GIF , BMP
etc.
• Multi-touch
• Bluetooth
• Video calling
• Multitasking

7. VERSIONS

8. 2.3 Gingerbread-55.5%
2.2 Froyo-30.4%
2.1 Éclair-8.5%

9. ANDROID ARCHITECTURE

10. • Hghest layer in the architecture
• Built-in standard applications
 Phone Dialer
 Email
 Contacts
 Web Browser
 Messaging
 Calendar

12. • Surface Manager - manages access to the display
composites 2D and 3D graphic layers from
multiple applications.
• Media Libraries - support playback and recording
of many popular audio and video formats and
also static images.
• SQLite - a powerful and lightweight relational
database, used for storage purpose.
• SGL - Display/Graphics.
• Libc - Includes a set of C/C++libraries.

13. • Includes a set of core libraries that provides most of the
functionality available in the core libraries of the Java.
• Dalvik uses Java programming but not JVM.
• Dalvik VM executes files in the (.dex) format

14. • Android relies on Linux version 2.6 for core
system services such as device
drivers, security, memory
management, process management.
• The kernel also acts as an abstraction layer
between the hardware and the rest of the
software stack.

15. USES
Phones
HTC G1,
Droid, Tattoo Motorola Droid (X)
Suno S880 Samsung Galaxy Sony Ericsson

16. Tablets
Velocity Micro Cruz Gome FlyTouch Acer beTouch
Cisco Android Tablet
Dawa D7 Toshiba Android
SmartBook

17. ANDROID MARKET

18. CONCLUSION
• Android is open to all : industry , developers and
users.
• Participating in many of the successful open
source projects.
• Aims to be as easy to build for as the web
• Google Android is stepping into the next level of
Mobile Internet.

19. Thank you for your attention.
Any Queries ?