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What is Symbian OS ? Nokia Mobile Phone's OS

Symbian OS was the most widely-used smartphone operating system in the world until 2010, when it was overtaken by Android. Development of Symbian OS was discontinued in May 2014.





Applications for Symbian are normally written in C++ (using Qt) or Symbian C++. However, applications written in Python, Java ME, Flash Lite, Ruby and .NET can also run. These applications may then be installed on the device using OTA (over-the-air), a mobile to PC data cable connection, Bluetooth or a memory card.

Symbian predecessor, Symbian OS, was developed by Symbiant Ltd, a partnership among PDA and smartphone manufacturers Nokia, Ericsson, Motorola and Psion. Nokia expressed interest in acquiring the entire company and the acquisition was completed at the end of 2008.

Targeted for smartphones, Symbian is designed to thrive in low-power battery-based devices as well as ROM-based systems. Its kernel, known as EKA2 (EPOC Kernel Architecture 2), features preemptive multithreading and full memory protection. This kernel already contains a scheduler, a memory management system and device drivers.

The operating system enables multitasking and increased memory protection. Manufacturers that use the Symbian OS include Nokia, Samsung and Sony Ericsson.

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