The document provides an overview of Symbian OS, including its origins as an operating system designed for mobile phones. It discusses the need for Symbian OS, its evolution through different versions, its architectural layers including the core, system layer, application engines and user interface, and software development tools and programming languages like C++ and Java. The advantages of Symbian OS are its open platform nature, power management features, and multitasking abilities. Disadvantages include that it is not available for PCs.

1. SYMBIAN OS
By
Deva Ashish Singh

2.  Introduction
 Need for Symbian OS
 Evolution in the various versions
 Architecture
 Architectural Overview
 Software Development
 Programming Languages
 Advantages & Disadvantages
 Conclusion

3.  Symbian OS is designed for the mobile phone environment.
 The Smartphone operating system Symbian OS is produced
by the software development and licensing company
Symbian Ltd.
 Symbian Ltd was established in June 1998 and is
headquartered in Southwark in the UK, and the current
CEO is Nigel Clifford.

4. Need for Symbian OS
 Small & mobile, but always available.
 Addressing the mass market
 Open platform

5. Evolution in the various versions

6. • Symbian OS 7.0
• Symbian OS 8.0
• Symbian OS 9.1
• Symbian OS 9.3
• Symbian OS 9.4
• Symbian Os 9.5

7. Architecture
UI Platforms
Application Engines
System layer
User Interface Applications Symbian OS
Framework
CORE

8. Architectural Overview
1. Core : Symbian OS core is common to all
devices i.e. kernel, file server, memory
management & device drivers.
2. System layer : It provides communication &
computing services such as TCP/IP, SMS &
database management.
3. Application Engines : It’s above the system layer,
enabling the software developers to create user
interface to data.

9. 4. User Interface Software : It can be
made or licensed by
manufacturers.
5. Applications : are slotted aboved
the user interface & pre-loaded in
the Symbian OS mobile phone.

10. Software Devlopment

11. What is IDE ?

12. Tools to for the software development
Tool name Description
GCC for Symbian Compile Symbian C++ Applications.
Symbian Certificate manager Allows you to manage your device’s
certificates.
Symbian DevCert Request Enables you to obtain Symbian Developer
Certificate.
Symbian MakeSIS It converts your C++ applications in .SIS
packages(formats).
Symbian UnSIS Extracts the .SIS packages.

13.  Symbian OS offers a choice of programming
languages to the developer. It’s written in C++.
 Java, 2nd the most important programming
language on Symbian OS.
 Other programming languages are Java Script,
Assembler, Visual Basic and So on…

14. ADVANTAGES
 It’s an open platform based on C++ (Object
Oriented Concepts), which is easy to configure.
 Giving an additional feature of Power
Management like “ Power Saving”.
 Fully multitasking.
 Small but with a lots of in-built features.

15. DISADVANTAGES
 Not available for PCs.

16. Conclusion
 Symbian OS is a multi-tasking operating
system which addressing the mass-
market and designed for simplifying the
work load.
 It’s a open platform allows the
installation of third party software to
enhance the platform.

17. Thank YOU.
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