Tizen

LiMoLiMo operating systemSamsung Tizen OSTizen (OS 4.0)Tizen OSZ
Tizen is a Linux-based mobile operating system backed by the Linux Foundation but developed and used primarily by Samsung Electronics.wikipedia
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Bada

Samsung BadaBada 2.0Bada (Samsung)
Samsung merged its previous Linux-based OS effort, Bada, into Tizen, and has since used it primarily on platforms such as wearable devices and smart TVs.
Samsung announced in June 2012 intentions to merge Bada into the Tizen project, but would meanwhile use its own Bada operating system, in parallel with Google Android OS and Microsoft Windows Phone, for its smartphones.

MeeGo

MeeGo HarmattanMeeGo netbookMeeGo TV
The project was originally conceived as an HTML5-based platform for mobile devices to succeed MeeGo. The Tizen project was formed by the Linux Foundation in 2011 as a successor to MeeGo, another Linux-based mobile operating system, with its main backer Intel joining Samsung Electronics, as well as Access Co., NEC Casio, NTT DoCoMo, Panasonic Mobile, SK Telecom, Telefónica, and Vodafone as commercial partners.
The Linux Foundation canceled MeeGo in September 2011 in favor of Tizen, which Intel then joined in collaboration with Samsung.

Mobile operating system

mobile platformsmobilemobile operating systems
Tizen is a Linux-based mobile operating system backed by the Linux Foundation but developed and used primarily by Samsung Electronics.
September – Samsung, Intel, and the Linux Foundation announced that their efforts will shift from Bada, MeeGo to Tizen during 2011 and 2012.

Flora License

Much of Tizen is open source software, although the software development kit contains proprietary components owned by Samsung, and portions of the OS are licensed under the Flora License—a derivative of the Apache License that only grants a patent license to "Tizen certified platforms".
Flora License is a single purpose permissive software license used by the Linux Foundation in certain platform components of Tizen.

Samsung Electronics

SamsungSamsung Smart TVSamsung Electronics Co., Ltd.
Tizen is a Linux-based mobile operating system backed by the Linux Foundation but developed and used primarily by Samsung Electronics. The Tizen project was formed by the Linux Foundation in 2011 as a successor to MeeGo, another Linux-based mobile operating system, with its main backer Intel joining Samsung Electronics, as well as Access Co., NEC Casio, NTT DoCoMo, Panasonic Mobile, SK Telecom, Telefónica, and Vodafone as commercial partners.
While many other handset makers focused on one or two operating systems, Samsung for a time used several of them: Symbian, Windows Phone, Linux-based LiMo, and Samsung's proprietary Bada.

Linux

GNU/LinuxLinLinux operating system
Tizen is a Linux-based mobile operating system backed by the Linux Foundation but developed and used primarily by Samsung Electronics.
Major platforms for such systems include Android, Firefox OS, Mer and Tizen.

Samsung Gear 2

Gear 2
In 2014, Samsung released the Gear 2 smartwatch, which migrated to a Tizen-based operating system as opposed to Android.
In comparison to the Galaxy Gear, the most significant change made to the Gear 2 line was the replacement of Android with the Samsung-developed Tizen operating system, promising improved functionality (such as Samsung's S Health software and an integrated music player) and battery life.

Samsung Gear S3

Gear S3
Samsung Gear S3
The Samsung Gear S3 is a Tizen-based circular smartwatch developed by Samsung Electronics.

Samsung Galaxy Gear

Galaxy Gear
Samsung Galaxy Gear
Originally released as an Android-based device, Samsung replaced the operating system with Tizen through the May 2014 software update.

Samsung Gear S2

Gear S
Samsung Gear S2
The Samsung Gear S2 is a smartwatch developed by Samsung Electronics running Samsung's Tizen operating system.

Intel

Intel CorporationIntel Corp. Intel Corporation
The Tizen project was formed by the Linux Foundation in 2011 as a successor to MeeGo, another Linux-based mobile operating system, with its main backer Intel joining Samsung Electronics, as well as Access Co., NEC Casio, NTT DoCoMo, Panasonic Mobile, SK Telecom, Telefónica, and Vodafone as commercial partners.
In September 2011 Intel stopped working on MeeGo and partnered with Samsung to create Tizen, a new project hosted by the Linux Foundation.

Linux Foundation

The Linux FoundationPatent Commons[9
Tizen is a Linux-based mobile operating system backed by the Linux Foundation but developed and used primarily by Samsung Electronics. The Tizen project was formed by the Linux Foundation in 2011 as a successor to MeeGo, another Linux-based mobile operating system, with its main backer Intel joining Samsung Electronics, as well as Access Co., NEC Casio, NTT DoCoMo, Panasonic Mobile, SK Telecom, Telefónica, and Vodafone as commercial partners.
Tizen is a free and open-source, standards-based software platform supported by leading mobile operators, device manufacturers, and silicon suppliers for multiple device categories such as smartphones, tablets, netbooks, in-vehicle infotainment devices, and smart TVs.

Samsung Gear S

Samsung Gear S
It has a Dual Core 1.0 GHz processor and runs the Tizen operating system.

Samsung Z1

Z1
Samsung Z1
It was the first phone to use the Tizen operating system.

Samsung Z3

Z3
Samsung Z3
It is the second smartphone to be shipped with the Tizen operating system (after the Samsung Z1).

Samsung Z2

Z2
Samsung Z2
It is the third smartphone to be shipped with the Tizen operating system, after the Samsung Z1 and Samsung Z3.

Automotive Grade Linux

On September 16, 2012, Automotive Grade Linux announced its intent to use Tizen as the basis of its reference distribution.
On June 30, 2014, AGL announced their first release, which was based on Tizen and was primarily for demo applications.

Smartwatch

smart watchsmartwatcheswatch phone
In 2014, Samsung released the Gear 2 smartwatch, which migrated to a Tizen-based operating system as opposed to Android.
Tizen is a Linux-based operating system for various platforms including smartwatches.

Smartphone

smartphonessmart phonesmart phones
Tizen (based on the Linux kernel) is a mobile operating system hosted by Linux Foundation, together with support from the Tizen Association, guided by a Technical Steering Group composed of Intel and Samsung.

Graphical user interface

GUIgraphicalgraphical interface
The GUIs familiar to most people as of the mid-late 2010s are Microsoft Windows, macOS, and the X Window System interfaces for desktop and laptop computers, and Android, Apple's iOS, Symbian, BlackBerry OS, Windows Phone/Windows 10 Mobile, Tizen, Palm OS-WebOS, and Firefox OS for handheld (smartphone) devices.