Symbian OS is one of Nokia's mobile operating system for mobile devices and smartphones, with associated libraries, user interface, frameworks and reference implementations of common tools, originally developed by Symbian Ltd. It was a descendant of Psion's EPOC and runs exclusively on ARM processors, although an unreleased x86 port existed.
2008, the former Symbian Software Limited was acquired by Nokia and a new independent non-profit organisation called the Symbian Foundation was established. Symbian OS and its associated user interfaces S60, UIQ and MOAP(S) were contributed by their owners to the foundation with the objective of creating the Symbian platform as a royalty-free, open source software. The platform has been designated as the successor to Symbian OS, following the official launch of the Symbian Foundation in April 2009.
Competition
In the number of "smart mobile device" shipments, Symbian devices are the market leaders. Statistics published in February 2010 showed that the Symbian devices comprised a 47.2% share of the smart mobile devices shipped in in 2009, with RIM having 20.8%, Apple having 15.1% (through iPhone OS), Microsoft having 8.8% (through Windows CE and Windows Mobile) and Android having 4.7%. Other competitors include webOS, Qualcomm's BREW, SavaJe, Linux and MontaVista Software.
EPOC
EPOC is a family of graphical operating systems developed by Psion for portable devices, primarily PDAs. EPOC came from epoch, the beginning of an era, but was backfitted by the engineers to "Electronic Piece Of Cheese".
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