Symbian

Symbian OS is an operating system for mobile devices. It is designed for smartphones.

History

13 years ago, companies such as Nokia, Motorola, Ericsson and Psion joined together, to create Symbian association. This let them promote using EPOC designed for mobile phones. Symbian is follower of EPOC system. It is used in pocket PC Psion, running on the ARM processors. This operation system has had many changes since it was first created. Today, Symbian OS is used for all Nokia smartphones.

Versions

Symbian 6.0 / 6.1	The first usable version of Symbian. It was used on Nokia 9210 communicator. Nokia sold over 500 000pcs of this type. Basic changes were: add bluetooth support, VGA camera.
Symbian 7.0 / 7.1	Very important version of Symbian OS. Developers add support of EDGE technology and IPv6. Change from pJava to Java ME. A virus, spread by bluetooth, caused problems with this version.
Symbian 8.0 / 8.1	Safer version of Symbian (because of the first virus), with CDMA, 3G, DVB-H and OpenGL support.
Symbian 9.0	There was only few changes, mostly for developers.
Symbian 9.x	Version 9.1 was released in 2005. Nokia added support of Bluetooth 2.0, but some developers were angry because of the new security changes.

A new version came out every year after 2005. Because of fast technical research, mobile phones and operation systems made very large improvement quickly. The most recent Symbian OS is designed for touch phones and the newest technologies.