Android is an open-source operating system used for smartphones and tablets. It was developed by Android Inc which was founded in 2003. Some key events in Android's history include the release of the first commercial Android device, the HTC Dream, in 2008 and Samsung's Galaxy Tab tablet in 2010. Android uses the Linux kernel and runs apps in the Dalvik virtual machine. It has an application framework and core apps. Major Android versions include Cupcake, Donut, Eclair, Froyo, Gingerbread, Honeycomb, Ice Cream Sandwich, Jelly Bean, KitKat, Lollipop, Marshmallow, Nougat, Oreo and Pie. Features include a beautiful UI, connectivity, storage,

1. PRESENTATION ON
By
Nazmul Hoda – 011 201 224
Santi Brata Nath (Joy) – 011 201 230
Architecture

2. CONTENTS
• History
• Evolution of Mobile Phones
• Android Architecture
• Features of Android

3. Android
• A robot with a human appearance
• An open source operating system used for smartphones and
tablets.

4. HISTORY OF ANDROID
Andy Rubin Rich MinerNick Sears Chris White
Android Inc. was founded in Palo Alto, California, in
October 2003 by Andy Rubin, Rich Miner, Nick Sears,
and Chris White

5. History of Android
HTC Dream or T-Mobile G1,
the first commercially
released device running
Android (2008)
Samsung Galaxy Tab. This
7-inch tablet launched in
late 2010

7. Android Architecture
Android is a complete stack of
• Operating system
• Middleware SDK
• Core applications

9. Linux Kernel
• Linux kernel provides a level of abstraction.
• Linux version 2.6.x for core system services.

10. Libraries
• Written on C/C++.
• Libc: c
• SSL
• Surface manager
• Open GL
• SGL
• Media Framework
• WebKit

11. Android Runtime
• Limited battery
• Limited memory
• Limited CPU.
• Dalvik Virtual Machine
• Core Java libraries.

12. Application Framework
Important blocks of Application Framework
• Activity manager
• Content providers
• Telephony manager
• Location manager

13. Applications

14. • Ice Cream Sandwich (Android 4.0)
• Jelly Bean (Android 4.1)
• KitKat (Android 4.4)
• Lollipop (Android 5.0/5.1/5.2)
• Marshmallow(Android 6.0/6.1)
• Nougat (Android 7.0)
• Oreo (Android 8.0)
• Pie (Android 9.0)
Android versions
• Angel cake (Android 1.0)
• Battenberg (Android 1.1)
• Cupcake (Android 1.5)
• Donut (Android 1.6)
• Eclair (Android 2.0/2.1)
• Froyo (Android 2.2)
• Gingerbread (Android 2.3)
• Honeycomb (Android 3.0)
• Android 10 (Android 10.0 – Coming Soon)

16. Features of Android
• Beautiful UI
• Connectivity
• Storage SQLite
• Media support
• Messaging
• Web browser
• Multi-touch
• Multi-tasking
• GCM

17. Evolving trends
• Android Wear
• Android TV
• Android Auto

18. References