Sony Ericsson G900C Benutzerhandbuch
White paper
G900c
53
August 2008
Symbian OS operating system
Symbian OS is the open operating system licensed
by the world's leading mobile phone
manufacturers. It is designed for the specific
requirements of advanced 2G and 2.5G mobile
phones. Symbian OS combines the power of an
integrated applications environment with mobile
telephony, bringing advanced data services to the
mass market.
by the world's leading mobile phone
manufacturers. It is designed for the specific
requirements of advanced 2G and 2.5G mobile
phones. Symbian OS combines the power of an
integrated applications environment with mobile
telephony, bringing advanced data services to the
mass market.
Symbian OS supports a wide range of device
categories with several user interfaces, this
includes UIQ, which is the software platform used
in G900c.
categories with several user interfaces, this
includes UIQ, which is the software platform used
in G900c.
Key features of Symbian OS v9.1
General
• Improved system performance, especially at
start-up.
• New multimedia framework supporting record-
ing, playback and streaming.
• Graphics – direct access to screen and key-
board gives high performance; graphics accel-
erator API; increased UI flexibility (support for
multiple simultaneous display, multiple display
sizes and multiple display orientation).
erator API; increased UI flexibility (support for
multiple simultaneous display, multiple display
sizes and multiple display orientation).
• Java™ support – supports the latest wireless
Java standards. For more information, see
Java™ on page 55.
Java™ on page 55.
• Communications protocols – wide area net-
working stacks including TCP/IP and WAP 2.0,
personal area networking support including Blu-
etooth connectivity and USB; support is also
provided for multihoming and link layer Quality-
of-Service (QoS) on GPRS network.
personal area networking support including Blu-
etooth connectivity and USB; support is also
provided for multihoming and link layer Quality-
of-Service (QoS) on GPRS network.
• International support – supports the Unicode
Standard version 3.0.
• Data synchronization – over-the-air (OTA) syn-
chronization support using OMA standards
(OMADS 1.2); PC-based synchronization over
USB and Bluetooth connections; a PC Connec-
tivity suite providing the ability to transfer files
and synchronize PIM data.
(OMADS 1.2); PC-based synchronization over
USB and Bluetooth connections; a PC Connec-
tivity suite providing the ability to transfer files
and synchronize PIM data.
• Improved device management which provides
network Operators and enterprises with new
capabilities to manage phones in the field. This
includes OMA DM 1.1.2 support and OMA client
provisioning 1.1.
capabilities to manage phones in the field. This
includes OMA DM 1.1.2 support and OMA client
provisioning 1.1.
• Support for Bluetooth wireless technology
eSCO and Bluetooth stereo headset profiles
have been implemented.
have been implemented.
Security
The aims of the security developments in Symbian
OS v9.1 are to protect the integrity of the phone,
provide extra control over user billable events and
to prevent malicious software corrupting
executables and data. The aims have been met by:
OS v9.1 are to protect the integrity of the phone,
provide extra control over user billable events and
to prevent malicious software corrupting
executables and data. The aims have been met by:
• Providing platform security by a proactive sys-
tem defence mechanism based on granting and
monitoring application capabilities through
Symbian-signed certification. The infrastructure
allows applications to have private protected
data stores.
monitoring application capabilities through
Symbian-signed certification. The infrastructure
allows applications to have private protected
data stores.
• A proactive defence mechanism against mal-
ware. The platform security infrastructure uses a
capability-based model, which ensures that
sensitive operations, such as, modifying user
data, making calls and using network connec-
tions, can only be accessed by applications
which have been certified by an appropriate
signing authority.
capability-based model, which ensures that
sensitive operations, such as, modifying user
data, making calls and using network connec-
tions, can only be accessed by applications
which have been certified by an appropriate
signing authority.
• Data caging, which allows applications to have
their own private data protection. This allows
applications a guaranteed secure data source.
This can be used for applications, such as,
ecommerce. An application can access other
directories marked as open but cannot access
another application’s private directory.
applications a guaranteed secure data source.
This can be used for applications, such as,
ecommerce. An application can access other
directories marked as open but cannot access
another application’s private directory.
• Additional platform security includes full
encryption and certificate management, secure
protocols (HTTPS, SSL and TLS) and WIM
framework.
protocols (HTTPS, SSL and TLS) and WIM
framework.