Operating Systems for Wireless Mobile Devices

1. Operating Systems for Wireless Mobile Devices Dr. Tal Lavian http://cs.berkeley.edu/~tlavian tlavian@cs.berkeley.edu UC Berkeley Engineering, CET Week #5 Why the OS matter?

2. Focus of the class today!

3. Why is Mobile OS Different?(from a desktop operating system) *Screen size Processing power Memory

4. What does Mobile OS do? • Provides management of operations and control • Coordinates the use of hardware for application programs • Shares the resources of a device Mobile OS Structure http://cmer.cis.uoguelph.ca

5. Mobile OS Features http://cmer.cis.uoguelph.ca

6. Mobile OS for Smartphones – Market share (Source: Market Research 2011)

7. Market share – most recent data (Credit: comScore) http://www.zdnet.com/smartphone-operating-systems-the-rise-of-android-the-fall-of-windows-7000011004/

8. Market share – most recent data (source: Wikipedia Feb 2013)

9. Mobile OS – Who is Number 3? The new and coming contenders for third place in 2013 will be Firefox OS, Sailfish OS, Tizen, and Ubuntu.  http://www.zdnet.com/smartphone-operating-systems-the-rise-of-android-the-fall-of-windows-7000011004/

10. Android Mobile OS http://cmer.cis.uoguelph.ca

11. Android Mobile OS - Architecture http://code.google.com/android/what-is-android.html

12. Android Mobile OS – Architecture (Contd.)

13. Android Mobile OS – Architecture (Contd.) • Source: http://code.google.com/android/what-is-android.html

14. iPhone OS http://developer.apple.com/documentation/Darwin/Conceptual/KernelProgramming/Architecture/Architecture.html

15. Mac OS X Architecture Each application has 4GB space http://developer.apple.com/documentation/Darwin/Conceptual/KernelProgramming/Architecture/Architecture.html

16. Windows Mobile OS

17. Types of Windows Mobile OS • Windows Mobile Classic Devices (Pocket PC) • Windows Mobile Smartphones • Windows Mobile 2003 • Windows Mobile 2003 SE • Windows Mobile 5 • Windows Mobile 6 • Windows Mobile 6.5.1 • Windows Mobile 6.5.3 • Windows Mobile 6.5.5 • Windows Phone 7 http://www.authorstream.com/Presentation/aSGuest89856-889448-mobile-operating-system/

18. BlackBerry Z10

19. BlackBerry Z10 and Q10 http://ca.blackberry.com/smartphones/blackberry-z10.html?LID=ca:bb:devices:blackberryz10:getdetails&LPOS=ca:bb:devices

20. BlackBerry OS http://www.qnx.com/products/neutrino-rtos/neutrino-rtos.html

21. Microsoft’s Approach to Smartphone Patent • Microsoft has approached smartphone patents from a different angle than many others • Things to keep in mind: • Microsoft has many software patents that courts could potentially deem read upon by the Android OS • Suing for patent infringement is • A) costly • B) no way to make friends

22. Microsoft’s Approach (Contd.) Microsoft has chosen to pursue de facto licensing arrangements in lieu of litigation Instead of suing manufacturers of Android devices for software infringement, has agreed to not sue OEM so long as they pay royalties to Microsoft Such deals exemplify yet another means companies have for making money from their IP

23. Microsoft’s Approach (Contd.)

24. Microsoft’s Approach (Contd.) • Microsoft has litigated: • Motorola • Software patents for email • Barnes & Noble • Android OS on Nook ebook reader • Foxconn • Android OS • Inventec • Android OS Microsoft hasn’t litigated nearly as much as some other companies. Why might that be?

25. Homework for next week • By Friday Midnight: • Two blog posts on Operating Systems for Wireless Mobile devices • (3-unit students – additional two YouTube clips) • By Sunday Midnight: • Two comments on this week blog posts, AND two comments on the YouTube video clips. • (3-units students, additional four comments on YouTube video clips)