Question: Symbian is valid Linux Based Shell

Answer:

• Symbian is not a Linux-based shell. It is a mobile operating system (OS) developed by Symbian Ltd., which was later acquired by Nokia.
• While Symbian OS is not based on Linux, it is an open-source operating system that was designed for use in mobile devices, such as smartphones and feature phones. It was one of the most widely used mobile operating systems in the early 2000s, particularly in Europe and Asia, before being largely superseded by iOS and Android.
• Symbian OS used its own shell and user interface, which were designed specifically for mobile devices. It had a number of features that were innovative for the time, such as support for multitasking, 3G connectivity, and mobile web browsing.
• While Symbian OS is no longer widely used, it played an important role in the development of mobile operating systems and helped pave the way for the development of modern mobile platforms.