Transcript What is Android? •Android is a mobile operating system developed by Google and is based upon the Linux kernel and GNU software. •It was initially.

What is Android?
•Android is a mobile operating system
developed by Google and is based
upon the Linux kernel and GNU
software.
•It was initially developed by Android
Inc. (a firm purchased by Google) and
later positioned in the Open Handset
Alliance.
ANDROID ARCHITECTURE
Acquisition by Google
•In July 2005, Google acquired
Android, Inc., a small startup
company based in Palo Alto,
California, USA.
•This began rumours that Google
was planning to enter the mobile
phone market.
• Devoted to advancing open
standards for mobile devices
• Develop technologies that
will significantly lower the
cost of developing and
distributing mobile devices
and services
What is the Open Handset Alliance
(OHA)?
→ It's a consortium of several companies
Features
•Handset layouts
•Storage
•Connectivity
•Messaging
•Web browser
•Java support
•Media support
•Streaming media support
•Additional hardware support
•Development environment
•Multi-touch
•Bluetooth
•Multitasking
•Tethering
PLATFORM
Hardware
Android is not a single piece of hardware; it's a
complete, end-to-end software platform that can be
adapted to work on any number of hardware
configurations. Everything is there, from the bootloader
all the way up to the applications.
Operating System(s)
• Android uses Linux for its device drivers, memory
management, process management, and networking.
• The next level up contains the Android native libraries. They
are all written in C/C++ internally, but you’ll be calling them
through Java interfaces. In this layer you can find the Surface
Manager, 2D and 3D graphics, Media codecs, the SQL
database (SQLite), and a native web browser engine
(WebKit).
Network Connectivity
It supports wireless communications
using:

GSM mobile-phone technology

3G

Edge

802.11 Wi-Fi networks
Security
Android is a multi-process system, in which each
application (and parts of the system) runs in its own
process. Most security between applications and the
system is enforced at the process level through standard
Linux facilities, such as user and group IDs that are
assigned to applications.
Additional finer-grained security features are provided
through a "permission" mechanism that enforces
restrictions on the specific operations that a particular
process can perform, and per-URI permissions for
granting ad-hoc access to specific pieces of data.
Future possibilities
• Google Android Sales to Overtake iPhone in 2012
• Intel doesn’t want to lose ownership of the netbook
market, so they need to prepare for anything,
including Android
• More Android devices are coming and some will
push the envelope even further
•The early feedback on developing
applications for the Android platform
was mixed.
• Issues cited include bugs, lack of
documentation, inadequate QA
infrastructure, and no public issuetracking system. (Google announced
an issue tracker on 18 January 2008.)
•The Android SDK includes a
comprehensive set of development
tools.
Google applications
Google has also participated in the
Android Market by offering several
applications for its services.
In mid August 2010 Google launched
"Voice Actions for Android", an
innovative feature to its set of
applications..
Logos:
The Android logo was designed with
the Droid font family made
by Ascender Corporation.
VERSIONS
Platform
API Level
Distribution
Android 1.5
3
12.0%
Android 1.6
4
17.5%
Android 2.1
7
41.7%
Android 2.2
8
28.7%
ADVANTAGES OF ANDROID
•Android can Run Multiple Apps at the Same Time.
• Android Keeps Information Visible on Your Home Screen.
•Android Has a Better App Market.
•Android Lets You Choose Your Hardware.
•Android Lets You Choose Your Carrier.
•Android Lets You Change Your Settings Faster.
•Android Does Google and Social Integration.
•Android Gives You More Options to Fit Your Budget.
Limitations
Bluetooth limitations
o
Android doesn't support:
 Bluetooth stereo
 Contacts exchange
 Modem pairing
 Wireless keyboards
But it'll work with Bluetooth headsets, but that's about it
CONCLUSION
We can only hope that the next versions
of Android have overcome the actual
limitations and that the future possibilities
became a reality.