1. Symbian OS Hatem Mahmoud www.ExpressionLab.com

3. Symbian OS Design

4. Symbian OS Layers

5. Developing on Symbian OS

6. References Agenda

7. Introduction

9. Designed for mobile devices

10. Developed by Symbian Ltd.

12. In 1984, Psion launched Psion Organiser , the world's first handheld computer

13. Psion Organiser II

15. In 1997, Psion Series 5 based on EPOC32 : 32-bit / written in C++

16. EPOC = Electronic Piece Of Cheese :-)

17. Psion Series 5mx

19. EPOC was renamed Symbian OS

21. First open Symbian OS phone: Nokia 9210 Communicator

22. Ericsson R380

24. ROM: 4 MB (1.2 MB accessible)

25. RAM: 2 MB EDO DRAM

26. Display: 3.5 ” monochrome touchscreen

27. Features: Unicode support, organizer, WAP, SMS/email, infrared port

28. Nokia 9210 Communicator

29. Nokia 9210 Communicator

31. ROM: 16 MB (2MB user-accessible)

32. RAM: 8 MB SDRAM

33. Display: 4.5 ” color TFT

34. Features: Bluetooth , QWERTY keyboard, 16 MB MMC, Java, document viewer

36. 2004: Cabir , the first worm (Bluetooth)

37. 2005: Symbian OS 8.1: EKA2 , a real-time kernel (API calls quick and time-bound)

38. 2005: Symbian OS 9.1: digital signing

40. 2007: Symbian OS 9.5 supports real-time multimedia and location-based services

41. History

42. History (2005)

43. History (2006)

44. History (2008)

46. € 264 million ($410 million)

47. Symbian Foundation , a non-profit organization, established to create one open source mobile operating system

49. S60 , Nokia

50. UIQ , Sony Ericsson and Motorola

51. MOAP(S) , NTT DoCoMo

52. Today

53. Future

54. Future

55. Symbian OS Design

56. Design Rules 1)User data is sacred 2)User time is precious 3)All resources are scarce

58. Client–server: resources are shared between users (services and applications)

59. Plug-in Frameworks: used at all levels from applications to device drivers

61. Event-based: all user interaction is captured as events to applications

62. Object-oriented design: Symbian OS and all applications follow MVC

64. Symbian OS Layers

65. 1) UI Framework Layer

67. TechView: a minimal test UI

68. Examples: S60 , Series 80 , Series 90 , UIQ , MOAP

69. 2) Application Services Layer

71. Technology-specific: vCard, vCal, etc.

72. A pplication-specific: plug-ins for contacts, agenda, office, etc.

73. 3) Java ME

74. 3) Java ME a)Configurations: Java language + JVM + base class libraries b)Profiles: Cell phones use MIDP which includes APIs for GUI and 2D gaming c)Optional packages: 3D graphics, web services, file system access, etc.

75. 4) OS Services Layer

76. 4) OS Services Layer a)Generic: certificate management, etc. b)Communications: Bluetooth, Infrared, USB, TCP/IP , Wi-Fi, etc. c)Multimedia and graphics: graphics, sound, video recording and play, etc. d)Connectivity: backup and restore, file transfer, file browsing, etc.

77. 5) Base Services Layer

79. 6) Kernel Services Layer

81. Manages processes, threads, scheduling, interrupts, etc.

84. Optimized for low-power devices

85. Developing on Symbian OS

87. Windows-based emulator: WINS

88. Eclipse plugin: Carbide.c++

89. Visual Studio plugin: Carbide.vs

90. Borland IDE for Linux and Mac OS

91. Other languages: Python , Perl , Java , etc.

92. References

94. Smartphone Operating System Concepts with Symbian OS by Michael J. Jipping

96. www.symbianfoundation.org

97. www.wikipedia.org

99. Thank You! Hatem Mahmoud www.ExpressionLab.com