A detailed description on android

1. By-Kavita Khandekar

3. What is Android?
 It is a software cluster for mobile devices that
include a operating system.
 Key Applications and middle ware.
 An Open Handset Alliance(OHA) Project.
 Based on Linux Kernel 3.0

4. Timeline
 Open handset alliance announces Android on November 5 th ,
2007.
 Android market (Open content distribution system)
announced on august 28 th , 2008 to connect users and
developers.
 Android 1.0 release 1 available on September 23 rd , 2008 and
android developers have access to first 1.0 compatible .
 Android open source project released android source on
October 21 st , 2008.
 World’s first Android mobile (T-Mobile G1) launched on
October 22 nd , 2008.

5. What is Open Handset Alliance?
 It's a consortium of several companies.
 Devoted to advancing open standards for mobile devices.
 Develop technologies that will significantly lower the
cost of developing and Distributing mobile devices and
services.

6. Architecture diagram

7. Android Versions
Versions
Names
1.0
Beta
1.1
Beta
1.5
Cupcake
1.6
Donut
2.0
Eclair
2.1
Eclair
2.2
Froyo
2.3
Gingerbread
3.0
Honeycomb
3.1
Honeycomb
3.2
Honeycomb
4.0
Ice-Cream-Sandwich

8. Ice Cream Sandwich
Gingerbread + Honeycomb

9. Linux Kernel
 Works as a Interface
 Device drivers
 Memory management
 Process management
 Networking

10. Libraries
 C/C++ libraries
 Interface through Java
 2D and 3D graphics
 Media codecs, SQLite, Browser engine

11. Application Framework
 API interface
 Activity manager –manages application life cycle.
 Content Providers Content Providers enable
applications to access data from other applications

13. 1. An Open Accessory API
 Allows external USB hardware (an Android USB
accessory) to interact with an Android-powered
device in a special "accessory" mode

14. 2. Cloud Music
 Users will be able to upload their libraries, playlists,
etc.
 Access them virtually anywhere from various
devices whether online or offline

15. 3. One OS for all
 Bridge the gap between tablets and phones

16. 4. NFC Sharing (Near Field
Communication)
 Bring the devices together and the data shared
without launching an application or navigating
through the UI.

17. 5. Gaming Improvements
 Neat 3D stuff
 Better processor optimization

18. 6.Expanding, Resizable
widgets
 For enhanced multitasking and visual access to
applications.

19. 7. Ability to be a USB host
 We can hook up keyboards, mouse etc.

20. 8. Face Detection
 Allow better coordination of a video
chat/conference session by being able to highlight
the speaker over and above the listener.
 Advanced Face-record

21. 9. Uses a single UI interface
 UI inspiration from Honeycomb for Phone form
factor
 Holographic UI
 Multitasking UI

22. Advantages
 Free to customize
 All applications are equal
 A more mature platform
 More apps (because of its age)
 Fast and easy development

23. Limitations
 Very unstable and often hang or crash
 Extremely inconsistence in design among apps
 Difficult to use because if the above
 Relatively few if any update because the updates
come from phone manufacturer not Google.

24. Conclusion
 Solid, proven, popular, open platform
 Used on wide range of devices
 Support from Google, telecom
 Low barriers to entry
 Major opportunity for new developers
 Creativity, hard work

25. References
 www.gizmodo.com
 www.knowyourmobile.in
 www.readwriteweb.com
 www.techradar.com