This document provides an overview of the Symbian mobile operating system. It discusses the architecture and components of Symbian OS, including the user interface framework, Java support, application services layer, OS services layer, base services layer, and kernel services. It also covers the different versions of Symbian OS released over time as well as key features like multitasking, memory management, and support for common file systems and networking. Applications developed for Symbian and technologies used in its development like the Symbian SDK and Carbide.c++ are also mentioned.

1. Mobile Operating System
(Symbian OS)
Presented By:-
Manish Solanki
0105IT121047
Information Technology
Submitted to:-
Prateek Sir

2. Contents
 Introduction
 Types of Operating System
 Symbian OS
 Architecture
 Symbian Mobile Operating System Version
 Future Mobile OS’s
 Applications
 Technologies in Symbian
 Conclusion
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3. Introduction
 An operating system (OS) is an interface between
hardware and user. It manages hardware and
software resources of the system.
 An operating system which controls mobile devices is
called Mobile OS. They are simple and deal with the
wireless versions of broadband and local connectivity.
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4. Different types of OS’s
Mobile OS
Symbian
OS
iPhone OS
RIM
BlackBerry
Windows
Mobile
Linux Palm OS Android
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5. SYMBIAN OS
 Symbian OS is a mobile operating system, developed
by Symbian Ltd, in 1997.
 It is a mobile operating system (OS) and designed for
Smartphone’s and currently maintained by
Accenture.
 It runs exclusively on ARM processors.
 In June 2008, Nokia announced the acquisition of
Symbian Ltd.
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6. 8/5/2014
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Licensees
Owners
1st Developer is NOKIA

7.  It was the most popular smartphone OS across the
world till the end of 2010,untill it was overtaken by
Android, although in some developing nations,
Symbian is still the biggest.
 The current form of Symbian is an open-source
platform developed by Symbian Foundation in 2009.
 Symbian OS is programmed in C++.
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8. Architecture8
Architecture of Symbian OS

9.  Frameworks and libraries
for constructing a UI.
 Includes the basic class
hierarchies for UI
controls.
 Other frameworks and
utilities.
9 UI Framework
Topmost layer of Symbian
OS, foundation for variant UI

10.  Spans the UI Framework
and Application Services
layer.
 It defines a platform for
dynamically and securely
deploying optimized,
graphical, networked
applications.
10 JAVA J2ME MIDP
Java J2ME
MIDP 2.0 and CLDC 1.1

11.  It provides support
independent of the
user interface for
applications on
Symbian OS.
 Application class
(“technology
specific”) logic.
 support for specific
applications
11 Application Services
Generic
Application class specific -
Messaging, browsing
Application specific - Word, Sheet

12.  the ‘middleware’ layer of
Symbian OS, provides
servers, frameworks, and
libraries that extend the
base-system into a
complete operating
system.
12 OS Services
Generic OS
Services
“Middleware" layer of
Symbian OS, full range of
servers, frameworks, and
libraries which extend the
base system into a complete
OS
Multimedia &
Graphics
Services
Connectivity
Services

13.  It includes the File
Server and User Library
 Plug-In Framework
which manages all
plug-ins
 Central Repository,
DBMS
 Cryptographic services
 Services for a functional
port
13 Base Services
Lowest level of user-side services,
extends the OS kernel into a useable
(but minimal) system

14.  Provides physical and
logical device drivers and
other hardware
abstraction.
 Creates and manages the
fundamental OS kernel
abstractions.
14 Kernel services & Hardware Interface
Kernel layer, contains the OS
kernel itself, device drivers,
and similar low-level
components

15. SYMBIAN MOBILE OS VERSION15
 Series 60 3rd edition Feature Pack 2
 Released on 12 July 2006.
 Support for Wi-Fi 802.11, HSDPA.
 Symbian^1 (Series 60 5th edition):-
 Applications should launch up to 75% faster.
 Additionally, SQL support is provided by SQLite.
 Symbian^3:-
 Released in the year 2010.
 Symbian^3 is an improvement over previous S60
5th Edition and features single touch menus in the
user interface, as well as new Symbian OS kernel
with hardware-accelerated graphics.

16. Contd..
 Symbian Anna and Symbian Belle:-
 Released in the year 2011.
 Free-form, differently-sized, live widgets
 More home screens
 Improved status bar
 Modernised navigation
 New apps
 Informative lock screen
 NFC devices
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17. Features
 Processes and Threads:
 Symbian OS is a multitasking and multithreaded
operating system.
 Many processes can run concurrently, can
communicate with each other, and can utilize multiple
threads that run internal to each process.
 Common File System support:
 Symbian OS organizes access to system storage using a
file system model, just like larger Operating systems.
 It has a default file system compatible with windows (by
default it uses FAT-32 file system).
 It supports several different file systems , like FAT 16 & FAT
32, NTFS etc.
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18. Contd..
 Networking:
Symbian OS supports TCP/IP networking as well
as several other communication interfaces such as serial,
infrared and Bluetooth.
 Memory Management:
Although Symbian OS does not use or have the
facilities for mapped virtual memory , it organizes
memory access in pages and allows for the replacement
of the pages, that is , bringing pages in, but not
swapping them out.
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19. Applications
GVPCE(A)
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20. Technologies in Symbian
 Symbian SDK
 Carbide.c++
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21. 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.
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22. Thank you all..!
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