This document discusses three major mobile operating systems: Android, iOS, and RIM. It provides details on the origins and technical underpinnings of Android and iOS. Android was developed by Android Inc which was later acquired by Google. It uses the Linux kernel and is programmed in C/C++ and Java. iOS was created by Apple for the original iPhone and is only available on Apple devices. It is programmed in C, C++ and Objective-C. The document also briefly outlines the history of the Blackberry OS.

1. Submitted by
K. Divya Tirumala

2.  Types of operating systems
 Android operating systems
IOS operating systems
RIM operating systems

3.  Android was founded in Palo Alto, California in October 2003 by
Andy Rubin, Rich Miner, Nick Sears and Chris White who work at
“Google” to develop.
“…smarter mobile devices that are more aware of its owner’s
location and preferences.”

4.  OPERATING SYSTEM
 Android uses Linux for its device drivers, memory management,
process management and networking.
 The next level contains Android native libraries. They are all
written in C/C++ internally, but calling through Java interfaces,
 In this layer, Surface Manager, 2D and 3D graphics, Media Codecs,
the SQL database (SQLite) and a web browser engine (WebKit).

5. Android versions

6. What is iOS?
 Apples mobile operating system considered the
foundation of the iPhone
 Originally designed for the iPhone but now supports
iPod touch, iPad, and Apple TV
 It is updated just like Itunes for iPods
 As of Oct 2011 Apple contains over 500,000 iOS
applications

7. Ios History
 Ios(iphone o.s) is a mobile operating system developed
by Apple.Inc started in 2007 with the first iphone 2G.
 It extended to support other apple devices such as
ipod,ipad etc..
 It is programmed in C,C++,Objective-C.
 Apple doesn’t license ios for installation on non- apple
hardware.

8. The first BlackBerry device, the 850, was
introduced in 1999 as a two-way pager in
Germany. The name BlackBerry was
coined by the marketing company
Lexicon Branding

9. 1 - Built-in speakerphone
2 - Voice Activated Dialing (VAD)
3- Polyphonic and mp3 ringtones
4- Conference calling
5- Voicemail attachment playback
6- Bluetooth enabled

10. Digital zoom
Built-in flash
Up to 5 MP camera
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