Tizen is an operating system based on Linux ; is open source but own (requires license). Not just for smartphones and tablets, but also for other equipment such as computers, Smart TV, cars and GPS navigators. It supports x86 and ARM platforms. Tizen is a project within the Linux Foundation and is governed by a Technical Steering Group (TSG) composed of Samsung and Intel among others.Tizen is the continuation of the LiMo project, which was renamed after the incorporation of Intel in September 2011, after leaving the project MeeGo Nokia. Actually, Tizen platform is based on Linux from Samsung , based on LiMo . 
For application developers and ISVs, Tizen offers the power of native application development with the flexibility of unparalleled HTML5 support. Tizen also offers the potential for application developers to extend their reach to new “smart devices” running Tizen, including wearables, consumer electronics (TVs, gaming consoles, DVRs, etc.), cars and appliances.
The operating system aims to offer a unified experience across multiple devices, so expect to see it featured in TVs, laptops and even crop in the 'bank and car industries' according to Samsung Electronics co-CEO J.K. Shin. Tablets running Tizen have already reached the hands of developers and the operating system has also been demoed running inside in-car entertainment systems. The first official Tizen device, the 20.3-megapixel Samsung NX300M camera was announced in late 2013. Now we have the first Tizen smartphone too.
Samsung Tizen Apps
As we've seen with Windows 8/Windows Phone 8, apps are a very big deal the growth and success of any new operating system. The good news is that Tizen will fortify native and web apps just as it did for Bada and subsisting Bada apps will also be ported over. Cut the Rope and Gameloft's Asphalt 7 are already set for the open Tizen Store and gives you an idea of the calibre of content you can expect at launch. To help make sure the app catalogue is fully stocked, Samsung also launched a Tizen app challenge in 2013 handing out $4 million to the 64 winners who created a both native Tizen apps and HTML5-based applications.
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p style=”text-align: center”>The future of Tizen
Version 3.0 is already in the works and some details were revealed at its Tizen developer summit back in late 2013, including support for 64-bit processors. We know that Google is also busy getting ready to release a 64-bit enabled version of Android. Like Android, there will be multi-user profiles as well as support for games and app that require more advanced 3D graphics. This update is expected in early 2015.