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Android OS

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MAHARISHI MARKANDESHWAR UNIVERSITY MULLANA, AMBALA, HARYANA

This seminar report discusses Android. It provides a brief history of Android including Google's acquisition of Android Inc. in 2005 and releases of the Android SDK. It describes Android as an open software platform for mobile development that uses Linux and is developed as part of the Open Handset Alliance. The report outlines Android's architecture including its use of Linux for core systems and the Dalvik virtual machine. It also discusses Android tools like the emulator, DDMS, and ADB. In closing, it notes some advantages of Android like running multiple apps simultaneously and its large app market.

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Seminar Report On Android Submitted to :- Neeraj Raheja Submitted by :- Harsh Kishor (Asst. Professor) Roll No :- 11107111 Class :- M.Tech(CSE) 2nd Year
ANDROID HISTORY ….. The origins of Android  Google acquired Android Inc. in 2005 Launch of Android SDK(Software Development Kit)  November 2007  1.0 (September 2008)  1.1 (February 2009)  1.5 (April 2009)  2.1 (January 2010)  2.3.4 (May 2011)  3.2 (July 2011) Launch of Phone  23rd September 2008
INTRODUCTION  Open software platform for mobile development  A complete stack – OS, Middleware, Applications  An Open Handset Alliance (OHA) project  Powered by Linux operating system  Fast application development in Java  Open source under the Apache 2 license
OPEN HANDSET ALLIANCE  Aim to advance open standards for mobile devices  Members are: Handset providers, mobile operators and software companies  Members have promised not to lock their Android phones  Members T-Mobile, HTC, LG, Motorola, Samsung, Sony Ericsson and many more
OHA Contd ….
ANDROID ARCHITECTURE
ARCHITECTURE Contd ….  Linux Version 2.6.x for core system services  Android uses only “Kernel” portion in Linux  Core Libraries  Provides the functionality of the JAVA Programming Language  Android Application runs in its own process, with its own instance of the Dalvik virtual machine  Dalvik VM: Java based license free VM  Register based VM, optimization for low memory requirements  Executes files in the Dalvik Executable (.dex) format  DX tool converts classes to .dex format
ARCHITECTURE Contd ….  Libc: c standard lib.  SSL: Secure Socket Layer  SGL: 2D image engine  OpenGL|ES: 3D image engine  Media Framework: Core part of Android multi-media  SQLite: Embedded database  WebKit: Kernel of web browser  FreeType: Bitmap and Vector  SufraceManager: Manage difference windows for different applications
ARCHITECTURE Contd ….  No limited application  Equality of each apps.  Easy to embedded web browser  Parallel running
ARCHITECTURE Contd ….
PLATFORM INITIALIZATION
APPLICATION LIFECYCLE
ANDROID TOOLS  The Android Emulator  Implementation of the Android virtual machine  Test and debug your android applications.  DalvikDebug Monitoring Service (DDMS)  Monitor and Control the Dalvikvirtual machines  Logcat(see logged msgs)  Android Debug Bridge (ADB)  Manage the state of an emulator instance or Android-powered device  Copy files, install compiled application packages, and run shell commands.  Traceview  Graphical analysis tool for viewing the trace logs from your Android application  Debug your application and profile its performance
ANDROID ADVANTAGES  It can run multiple apps at the same time  It keeps information visible on your home screen  It has a better app market(1,80,000 applications)  It gives you better notifications  It lets you choose your hardware
THANK YOU

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Android OS

  • 1. Seminar Report On Android Submitted to :- Neeraj Raheja Submitted by :- Harsh Kishor (Asst. Professor) Roll No :- 11107111 Class :- M.Tech(CSE) 2nd Year
  • 2. ANDROID HISTORY ….. The origins of Android  Google acquired Android Inc. in 2005 Launch of Android SDK(Software Development Kit)  November 2007  1.0 (September 2008)  1.1 (February 2009)  1.5 (April 2009)  2.1 (January 2010)  2.3.4 (May 2011)  3.2 (July 2011) Launch of Phone  23rd September 2008
  • 3. INTRODUCTION  Open software platform for mobile development  A complete stack – OS, Middleware, Applications  An Open Handset Alliance (OHA) project  Powered by Linux operating system  Fast application development in Java  Open source under the Apache 2 license
  • 4. OPEN HANDSET ALLIANCE  Aim to advance open standards for mobile devices  Members are: Handset providers, mobile operators and software companies  Members have promised not to lock their Android phones  Members T-Mobile, HTC, LG, Motorola, Samsung, Sony Ericsson and many more
  • 7. ARCHITECTURE Contd ….  Linux Version 2.6.x for core system services  Android uses only “Kernel” portion in Linux  Core Libraries  Provides the functionality of the JAVA Programming Language  Android Application runs in its own process, with its own instance of the Dalvik virtual machine  Dalvik VM: Java based license free VM  Register based VM, optimization for low memory requirements  Executes files in the Dalvik Executable (.dex) format  DX tool converts classes to .dex format
  • 8. ARCHITECTURE Contd ….  Libc: c standard lib.  SSL: Secure Socket Layer  SGL: 2D image engine  OpenGL|ES: 3D image engine  Media Framework: Core part of Android multi-media  SQLite: Embedded database  WebKit: Kernel of web browser  FreeType: Bitmap and Vector  SufraceManager: Manage difference windows for different applications
  • 9. ARCHITECTURE Contd ….  No limited application  Equality of each apps.  Easy to embedded web browser  Parallel running
  • 13. ANDROID TOOLS  The Android Emulator  Implementation of the Android virtual machine  Test and debug your android applications.  DalvikDebug Monitoring Service (DDMS)  Monitor and Control the Dalvikvirtual machines  Logcat(see logged msgs)  Android Debug Bridge (ADB)  Manage the state of an emulator instance or Android-powered device  Copy files, install compiled application packages, and run shell commands.  Traceview  Graphical analysis tool for viewing the trace logs from your Android application  Debug your application and profile its performance
  • 14. ANDROID ADVANTAGES  It can run multiple apps at the same time  It keeps information visible on your home screen  It has a better app market(1,80,000 applications)  It gives you better notifications  It lets you choose your hardware