| Row # |
| Title | Image | Description |
|---|
| 1 |
| Android |  | A free and open source Linux based operating system for touchscreen mobile devices such as smartphones and tablet computers. Initially developed by Android, Inc., which Google backed financially and eventually bought. |
| 2 |
| iOS |  | Apple's proprietary operating system for iPhone, iPod Touch, iPad and Apple TV (2nd generation). |
| 3 |
| BlackBerry OS |  | A proprietary mobile operating system developed by BlackBerry Ltd. It is the predecessor of the BlackBerry 10 mobile operating system. |
| 4 |
| BlackBerry 10 | | Proprietary mobile operating system developed for BlackBerry smartphones and tablets. |
| 5 |
| BlackBerry PlayBook OS | | An operating system based on the QNX Neutrino real-time operating system designed to run Adobe AIR and BlackBerry WebWorks applications. Also known as BlackBerry Tablet OS. |
| 6 |
| Windows Phone |  | Series of proprietary mobile operating systems developed by Microsoft. The successor to the Windows Mobile platform. |
| 7 |
| Windows RT |  | A variant of the Windows 8 operating system for mobile devices. |
| 8 |
| Windows Mobile |  | A family of mobile operating systems developed by Microsoft for smartphones and Pocket PCs. Windows Mobile is the predecessor of Windows Phone. |
| 9 |
| Bada |  | An operating system developed by Samsung Electronics, for mobile devices such as smartphones and tablet computers. |
| 10 |
| Symbian OS |  | A mobile operating system and computing platform designed for smartphones. It is currently maintained by Accenture, and was originally developed by Symbian Ltd. |
| 11 |
| Aliyun OS | | A Linux distribution designed for smartphones, developed by AliCloud, a subsidiary of Chinese company Alibaba Group. Aliyun OS is also known as Yun OS. |
| 12 |
| Firefox OS |  | A Linux based open source operating system developed by Mozilla, for smartphones and tablet computers. |
| 13 |
| Ubuntu Touch |  | A mobile interface for Ubuntu developed by Canonical Ltd, designed primarily for touchscreen mobile devices such as smartphones and tablet computers. |
| 14 |
| Nokia Asha |  | A mobile operating system and computing platform designed for low-end borderline smartphones. It is the successor of Series 40. |
| 15 |
| Palm OS | | A mobile operating system initially developed by Palm, Inc., for personal digital assistants (PDAs). Palm OS is also known as Garnet OS. |
| 16 |
| Series 40 | | Proprietary operating system from Nokia. Also known as S40 OS. |
| 17 |
| Sailfish OS |  | Linux based mobile operating system developed by Jolla in cooperation with the Mer project and supported by the Sailfish Alliance. |
| 18 |
| GridOS | | GridOS was built by Fusion Garage, using open source code from the Android kernel. It is the operating system of the Grid 4 mobile phone and Grid 10 tablet. |
| 19 |
| Mer project |  | Mer is fork of MeeGo, and is an open, mobile-optimised, core distribution aimed at device manufacturers. |
| 20 |
| Brew |  | BREW stands for Binary Runtime Environment for Wireless. It is an application development platform created by Qualcomm, originally for CDMA (code division multiple access) mobile phones. |
| 21 |
| SHR |  | SHR stands for Stable Hybrid Release. It is a community-driven Linux distribution for smartphones which is based on OpenEmbedded and the FSO framework. |
| 22 |
| webOS |  | A mobile operating system based on a Linux kernel, and was initially developed by Palm, which was later acquired by Hewlett-Packard and then LG Electronics. |
| 23 |
| Tizen |  | An open source operating system for smartphones, tablets, in-vehicle infotainment (IVI) devices, and smart TVs. |
| 24 | | DangerOS | | A largely Java-based operating system for the Danger Hiptop line of smartphones. |
| 25 |
| LiMo 4 |  | An open source, hardware-independent, Linux based mobile operating system for smartphone mobile devices. It is from The LiMo Foundation, a non-profit technology consortium organisation. |
| 26 |
| Maemo |  | A software platform (based on the Debian Linux distribution), for smartphones and tablets. |
| 27 |
| MeeGo |  | A Linux based free mobile operating system designed for hardware platforms such as netbooks, entry-level desktops, nettops, tablet computers, mobile computing and communications devices, in-vehicle infotainment devices, SmartTV / ConnectedTV, IPTV-boxes, smart phones, and other embedded systems. |
| 28 | | Nucleus RTOS | | A real-time operating system (RTOS) and toolset created by the Embedded Systems Division of Mentor Graphics, and is designed for embedded systems applications including consumer electronics, set-top boxes, cellular phones, and other portable and handheld devices. |
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