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Tizen 2.2 beta screen
|Developer||Linux Foundation, Tizen Association, Samsung, Intel|
|Written in||HTML5, C, C++|
|Source model||Operating system: Open source
|Initial release||January 5, 2012|
|Latest release||3.0 / May 20, 2017|
|Marketing target||tablets, smartphones, GPS smartnav, in-vehicle infotainment, smart TV, wearable computing, Samsung Smart Home|
|Package manager||RPM Package Manager|
|Platforms||ARM and x86|
|Kernel type||Monolithic kernel|
|Default user interface||Graphical (Native and Web applications)|
|License||Operating system: GPLv2, LGPL, Apache License, BSD, Flora License
Tizen (//) is an operating system based on the Linux kernel and the GNU C Library implementing the Linux API. It works on a wide range of devices, including smartphones, tablets, in-vehicle infotainment (IVI) devices, smart TVs, PCs, smart cameras, wearable computing (such as smartwatches), Blu-ray players, printers and smart home appliances (such as refrigerators, lighting, washing machines, air conditioners, ovens/microwaves and a robotic vacuum cleaner). Its purpose is to offer a consistent user experience across devices. Tizen is a project within the Linux Foundation and is governed by a Technical Steering Group (TSG).
The Tizen Association was formed to guide the industry role of Tizen, including requirements gathering, identifying and facilitating service models, and overall industry marketing and education.
Members of the Tizen Association represent major sectors of the mobility industry, from numerous areas of the world. Current members include telecommunications network operators and electronics manufacturers: Fujitsu, Huawei, Intel, KT, NEC Casio, NTT DoCoMo, Orange, Panasonic, Samsung, SK Telecom, Sprint and Vodafone. While the Tizen Association decides what needs to be done in Tizen, the Technical Steering Group determines what code is actually incorporated into the operating system to accomplish those goals. Tizen roots back to the Samsung Linux Platform (SLP) and the LiMo Project and in 2013 Samsung merged its homegrown Bada project into Tizen.
Samsung became the only Tizen member incorporating and developing the operating system, increasingly distributing it to its products and planning to use it as its flagship operating system.
The first week of October 2013, Samsung's NX300M smart camera became the first consumer product based on Tizen; it was sold in South Korea for a month before its OS was revealed at the Tizen Developer Summit, then became available for pre-order in the United States in early 2014 with a release date of March 1. The first Tizen tablet was announced by Systena in June 2013, a 10-inch quad-core ARM with 1920×1200 resolution that was eventually shipped in late October 2013 as part of a development kit exclusive to Japan. The Samsung Gear 2 smartwatch, released in April 2014, uses Tizen.
The Core Mobile Web Platform Community Group (Coremob) brought developers, equipment manufacturers, browser vendors and operators together to agree on core features developers can depend on. The group closed in September 2013 and work was moved to the Web and Mobile Interest Group, which was closed in November 2015.
In late January 2013, Tizen 2.0 scored highest at the time in an HTML5 test of any browsers. As the old HTML5 tests were phased out on November 13, 2013, Tizen 2.2 fell below BlackBerry 10.2 at 494 out of 555 points. However, as of December 2013[update] desktop browsers had regained the advantage, and results for Tizen 2.2 on a Samsung device score highest overall in mobile, with a score of 497 points.
Applications based on Qt, GTK+ and EFL frameworks can run on Tizen IVI. While there is no official support for these third-party frameworks, according to the explanation on the Tizen SDK website, Tizen applications for mobile devices can be developed without relying on an official Tizen IDE as long as the application complies with Tizen packaging rules. In May 2013, a community port of Qt to Tizen focused on delivering native GUI controls and integration of Qt with Tizen OS features for smartphones. Based on the Qt port to Tizen, Tizen and mer can interchange code.
Tizen's open governance model was created through public input, suggestions, criticism, or participation, of Tizen 2.0. By early 2014 cross-licensing among hardware manufacturers was happening more broadly. Extending open source software and patenting the extension is an option that most open source licenses do not restrict.
The operating system consists of many open source components. A number of components internally developed by Samsung (e.g., boot animation, calendar, task manager, music player applications) are, however, released under the Flora License, essentially a BSD- or Apache-style license except granting patents to "Tizen Certified Platform" only.
Flora is not approved by the Open Source Initiative. Therefore, it is unclear whether developers can legally use the native application framework and its graphical components to make GPL applications. Source code access is guaranteed however.
Tizen comes from a long history of Linux adoption by manufacturers. A complete family tree is available.
Samsung's collaboration with the EFL project, and especially Carsten Haitzler, was known as LiMo for years. It was renamed Tizen when Intel joined the project in September 2011, after leaving the MeeGo project. A common misconception is that Tizen is a continuation of MeeGo. In fact, it builds on Samsung Linux (SLP), a reference implementation delivered within LiMo.
On January 1, 2012, the LiMo Foundation was renamed Tizen Association. The Tizen Association is led by a Board of Directors from Samsung, Intel, Huawei, Fujitsu, NEC, Panasonic, KT Corporation, Sprint Corporation, SK Telecom, Orange, NTT DoCoMo, and Vodafone. The Tizen Association works closely with the Linux Foundation, which supports the Tizen open source project.
On May 7, 2012, American wireless carrier Sprint Nextel (now Sprint Corporation) announced it had agreed to become part of the Tizen Association and planned to include Tizen-powered devices in their future lineup.
On September 16, 2012, the Automotive Grade Linux Workgroup announced it will work with the Tizen project as the reference distribution optimized for a broad set of automotive applications such as instrumentation cluster and in-vehicle-infotainment (IVI).
In April 2013, Samsung announced Tizen Port-a-thon. This campaign supports Bada developers' early entry into the Tizen market by providing technical support and incentives.
On May 14, 2014, it was announced that Tizen:Common would ship with Qt integrated. This marks the ability for Tizen to support Qt native apps.
After joining the .Net Foundation Steering Group in June 2016, Samsung announced in November 2016 that they would be collaborating with Microsoft to bring .Net support to Tizen.
Allegedly, the first Tizen devices were planned for the second half of 2012. Samsung then clarified that first quarter of 2013 was not a date of actual product launch, but of demonstrations at Mobile World Congress. Tizen services made by Samsung were said to ship in 2013, perhaps in August or September, then replaced to "Later in 2013", and then perhaps in early 2014.
In February 2014, the Samsung Gear 2 and Gear 2 Neo smartwatches were unveiled, and released in April, running Tizen instead of Android as the original Galaxy Gear. On May 31, 2014, Samsung released an update for the original Galaxy Gear, switching the operating system to Tizen.
Samsung announced the Samsung Gear S – a smartwatch that is able to make phone calls and send SMS – on August 28, 2014 On September 15, 2014, it released the Samsung NX1, a high-end camera that also uses Tizen.
On January 14, 2015, the Samsung Z1, a low-cost smartphone using Tizen, was introduced in India and later Bangladesh, and in mid May 2015 Sri Lanka was indicated. Z3 of the same series was released in October.
Samsung announced the Gear S2 on September 1, 2015, its first circular smart watch, also powered by Tizen.
Samsung continues to promote the Tizen OS with new devices. February 21, 2016, it announced the Samsung Connect Auto, a connected car solution offering diagnostic, Wi-Fi and other car-connected services. The device plugs directly into the OBD-II port underneath the steering wheel.
On June 3, 2016 Samsung unveiled the next generation Gear Fit fitness band, the Samsung Gear Fit 2, the sport band provide users with accurate auto-tracking and other fitness features such as pedometer, S Health support as well as heart rate monitor. Along with Gear Fit 2, Samsung also introduced the Gear Icon X a cord-free earbuds that provide a lightweight, and tangle free earbuds, the earbud is said to run the Tizen OS.
On August 23, 2016, Samsung unveiled its third smartphone powered by Tizen operating system in India, the Samsung Z2 is an entry level smartphone with 4G support, the device has a 1.5 GHz Quad-core processor, 1GB RAM and 8GB internal memory, it features Ultra Data Saving mode, S bike mode and with the new My Money Transfer app 
On April 3, 2017, Vice reported on its "Motherboard" website that Amihai Neiderman, an Israeli security expert, has found more than 40 zero-day vulnerabilities in Tizen's code, allowing hackers to remotely access a wide variety of current Samsung products running Tizen, such as Smart TVs and mobile phones. Only after the article was published did Samsung, who Neiderman tried to contact months before, reach out to him to follow up on the report.
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