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Android Android Presentation Transcript

  • By-: Amitoj Singh
  • Founders of Android
  • July 2005-Google acquired Android Inc 5 Nov 2007-Open HandSet Alliance formed-Google, HTC,INTEL,MOTOROLA,T-MOBILE. 12 Nov 2007-OHA released a preview of the Android OHA HISTORY
  • WHAT IS AN ANDROID?
  • OPEN HANDSET ALLIANCE(OHA)
  • FEATURES OF ANDROID
  • ● Cellular networking ● LAN ● Camera,GPS,compass(har dware dependent) ● Touch screen and accelerometer for motion sensing ● Graphics hardware aceleration HARDWARE
  • Software ● Media support for common audio, video and still image formats (MPEG4,H.264,MP3, AAC, AMR,JPG,PNG,GIF) ● Integrated browser based on the open source WebKit engine ● The SQL database (SQLite )for relational data storage ● Dalvik virtual machine optimized for mobile devices
  • ANDROID ARCHITECTURE
  • APPLICATION FRAMEWORK
  • LIBRARIES ● Written in C/C++ - System C Library(libc) ● Display/Graphics(SGL) ● Media Libraries ● SQLite –RDB engine-light weight ● LibWebCore–web browser engine– embeddable Web view
  • Android runtime ● Includes a set of core libraries that provides most of the functionality-JAVA ● Every Android application runs in its own process ● Dalvik VM executes files in the (.dex) format ● Device can run multiple VMs efficiently
  • Linux kernel
  • Android versions