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.
Open Handset Alliance is a consortium of 86 companies.
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
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
• Hghest layer in the architecture• Built-in standard applications Phone Dialer Email Contacts Web Browser Messaging Calendar
• 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.
• 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
• 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.
USES PhonesHTC G1,Droid, Tattoo Motorola Droid (X) Suno S880 Samsung Galaxy Sony Ericsson
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.