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Information about Android

Published on December 4, 2013

Author: AmitUdhwani






INTRODUCTION  Android is an open source operating system, created by Google specifically for use on mobile devices (cell phones and tablets)  Linux based (2.6 kernel)  Can be programmed in C/C++ but most app development is done in Java  Supports Bluetooth, Wi-Fi, and 3G and 4G networking

HISTORY OF ANDROID  2005    2007    Google acquires startup Android Inc. to start Android platform Work on Dalvik VM begins Open Handset Alliance announced Early look at SDK 2008    Google sponsors 1st Android Developer Challenge T-Mobile G1 announced SDK 1.0 released


REQUIRMENT FOR ANDROID OS  MINIMUM 32 MB OF RAM  32 MB OF FLASH MEMORY  200MHZ PROCESSOR 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.

VERSOIN OF ANDROID Honeycomb Android 3.0-3.2 Ice cream Sandwich Android 4.0+

FEATURES APPLICATION FRAMEWORK  Messaging  Integrated Browser  Optimized Graphics  SQLite  Connectivity

USES LINUX TO PROVIDE CORE SYSTEM SERVICES  Security  Memory management  Process management  Power management  Hardware drivers

ANDROID INCRESED DAY BY DAY  Android apps can be developed on any platform (Windows XP and Vista, Linux, and Mac OS X) .  Android can support the same hardware as the iPhone: touchscreen, accelerometer, GPS, WiFi, SMS & still camera; plus features that the iPhone doesn’t support: MMS, video camera & bluetooth.  Android is a free OS so an Android-enabled smartphone should be cheaper than a normal smartphone. All the major manufacturers are looking at using it.  Anyone can develop and launch an Android app whereas Apple has strict control of their App Store.  Android has some fresh ideas like Google Maps “street view” and customisable home page


COMPARISON OF ANDROID FROM OTHER OS ANDROID 2.3 BLACK BERRY OS 6 SYMBIAN OS 3 Android 2.3 is loaded with several new colour schemes and various changes have been made in the user interface. Blackberry OS 6 is having the same professional home screen of its previous version. Symbian OS 3 is an enhanced version of its previous versions of operating system. Android support dual core processor. Black berry is planning to Symbian is planning to include dual core processor include dual core processor on their smart phones. on their smart phones. Any mobile manufacture can integrate this operating system in their mobile phones BlackBerry are available only for their respective manufacturing companies Symbian are available only for their respective manufacturing companies

ADVANTAGES  Android allows you to access core mobile device functionality throughstandard API calls.  All applications are equal.  Fast and easy development.  Combine information from the web with data on the phone -- such as contacts or geographic location -- to create new user experiences.  Many apps are free or low-cost.

DISADVANTAGES  Making source code available to everyone inevitabl y invites theattention of black hat hackers.  Open Source.  Platform doesn't run on an encrypted file system and has a vulnerablelog-in.

CONCLUSION  Android has been criticized for not being all opensource software despite what wasannounced by Google. Parts of the SDK are proprietary and closed source, and some believethis is so that Google can control the platform. Software installed by end-users must bewritten in Java, and will not have access to lower level device APIs. This provides end-userswith less control over their phone's functionality than other free and open source phone platforms, such as OpenMoko.With all upcoming applications and mobile services Google Android is stepping into the nextlevel of Mobile Internet. Android participates in many of the successful open source projects.That is, architect the solution for participation and the developers will not only come but will play well together. This is notable contrast with Apple and other companies, where sucharchitecture of participation is clearly belated.The first Android based official devices may well be launched sometime in the early half of 2009. Obviously, that's an age away when it comes to handset design, and Android may wellfind itself competing against the forthcoming Nokia touch screen phones and maybe even the iPhone .

REFERANCE o Android Official o - Official Android Google Code o - Open Handset Alliance o– Android

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