Symbian OS is an open source operating system for mobile phones primarily used on Nokia advanced or data enabled smart phones. Symbian OS runs exclusively on ARM processors and has evolved from Psion's EPOC which was developed as a rudimentary operating system for early electronic organizers. The Psion EPOC OS was refered to EPOC16 beginning in the late 1990's to help distinguish it from the newer 32bit Operating system EPOC32, which eventually became Symbian OS. Psion software created a joint venture with several mobile hardware manufacturers, Ericsson®, Motorola®, and Nokia® called Symbian and eventually took on the name Symbian Software, renaming EPOC32 Symbian OS.
The key advantage of EPOC32 over its 16bit predecessor is the ability to multi-task, perform multiple functions at once. In newer devices, this might mean being able to surf the web using the phone and not lose your content when answering an incoming call.
Many third party manufacturers were able to license the 32bit EPOC OS for their organizers and other mobile data devices. Since the late 1990's,Symbian OS has become one of the most popular mobile device operating systems available.
Several device manufacturers from Nokia® to Sony/Ericsson® have committed to the new and open project that Symbian has announced for its mobile phone operating system, Symbian OS. Wireless carriers such as AT&T® and T-Mobile® have also pledged support for the project.
Symbian OS has also adapted to include soft features such as global positioning software (GPS) which will become as common as a camera in the very near future. Service providers and other companies could then publish location based services that interact with the GPS found in a mobile phone, appearing on the display once the user is near an application.
In recent years, Microsoft® and Palm® have been the most discussed providers of operating system software for mobile phones, but Symbian has been powering phones for quite some time. The company announced in 2008 that the operating system would become open source very soon, allowing other vendors and even users themselves to add to the already widely established Symbian OS. The support for the much established mobile platform is far and wide, though much of the press lately has centered around Apple's iPhone® and other offerings, including the Google Android™ OS for mobile devices.
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