Android PPT

2. What is ANDROID ??
• Android is a mobile operating system.
• It is based upon a modified version of
the Linux kernel.
• Android is a software stack:
– Operating system
– Middleware
– Application

3. ϙ Why was it created ?
• Software development.
• Run on very small electronic device.
• Full phone software stack including
applications.
• Android is open & free.

4. ▐ ARCHITECTURE 葶

5. • Proven driver model
• Security, memory & process management
• Efficient computing resource management
• Stable and proven for mobile computing

6. • Written in c/c++ (system c library) libc
• Surface manager: composing different
drawing screens
• SGL : for 2D graphics
• OpenGLES : 3D graphic
• SQLite :a lightweight relational database, is
used for data storage purposes

7. • Includes a set of core
libraries that provide
more functionality.
• Every android application runs on its own
process
• Device can run multiple VM’s efficiently.
• Dalvik VM executable files in the .dex format

8. • Active manager: manages the life cycle of
application
• Contents providers: enable to access data from
other application
• Resource manager: provide access to non code
resources.
• Window manager
• Notification manager

9. ◄ INTRESTING ►
• Unit sales for Android OS smart phones ranked
first among all smartphone OS.(2010)
• There are currently over 100,000 apps available
for Android.
• Android was purchased by Google in 2005.
• Android has native support for multi-
touch which was initially made available in
handsets such as the HTC Hero.

10. The Android Emulator default home
screen
The functions of one system using a
different system, so that the second
system behaves like the first system
Benefits
Emulators maintain the original look, feel, and
behavior of the digital object

11. Conclusion
• Android is a disruptive technology, which was
introduced initially on mobile handsets, but
has much wider potential