1. Palm webOS History Version.Release Date. WebOS – 1.3.5 Build 194 Sprint Config – 2.012/28/2009 WebOS – 1.3.5 Build 194 Sprint Config – 2.012/28/2009 WebOS – 1.2.1 Sprint Config – 1.810/2/2009 WebOS – 1.1.0 Sprint Config – 1.77/23/2009 WebOS – 1.0.4 Sprint Config – 1.66/29/2009 WebOS – 1.0.3 Sprint Config – 1.56/19/2009 WebOS – 1.0.2 Sprint Config – 1.46/6/2009 http://support.sprintpcs.com/support/article/Find_and_update_the_software_versi on_on_your_Palm_Pre/case-ye186054-20090813-151310

2. Palm webOS Features Palm Synergy –that brings your information from all the places it resides into one logical view. Web-connected –Web-kit browser Run multiple applications at the same time Instinctive user interface –Applications run in cards –Cards are small web pages –HTML, CSS, JavaScript Intuitive and unobtrusive notifications

3. Palm webOS Architecture Core OS webOS Services UI System Manager Applications Mojo Framework

4. Palm webOS Products

6. BlackBerry OS History

8. iPhone OS History

10. iPhone OS features Full OS X Multi Tasking Networking Syncing Low Power Security Video Cocoa Core Animation Graphics Audio Widgets Applications

11. iPhone OS features It is based on Mac OS X, optimized for mobile ARM CPU, 4/8/16 Gb storage Touch screen, proximity sensor, accelerometer, ambient light sensor, multi-touch sensing Text input: virtual keyboard with spell checking and predictive input Phone, PDA and iPod features

12. iPone OS Architecture

13. iPhone OS Products