Windows RT
| A version of the Windows NT operating system | |
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| Developer | Microsoft |
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| Released to manufacturing |
October 26, 2012 |
| Latest release | 6.3.9600 Update 3(Windows RT 8.1 Update 3) / September 15, 2015 |
| Platforms | 32-bit ARM (ARMv7) |
| Kernel type | Hybrid (Windows NT) |
| Official website | windows |
| Support status | |
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| Articles in the series | |
Windows RT is a mobile operating system developed by Microsoft. It is an edition of Windows 8.x built for the 32-bit ARM architecture (ARMv7). First unveiled in January 2011 at Consumer Electronics Show, the Windows 8 RT operating system was officially launched alongside Windows 8 on October 26, 2012, with the release of three Windows RT-based devices, including Microsoft's Surface tablet. Unlike Windows 8, Windows RT is only available as preloaded software on devices specifically designed for the operating system by original equipment manufacturers (OEMs).
Microsoft intended for devices with Windows RT to take advantage of the architecture's power efficiency to allow for longer battery life, to use system-on-chip (SoC) designs to allow for thinner devices, and to provide a "reliable" experience over time. In comparison to other mobile operating systems, Windows RT also supports a relatively large number of existing USB peripherals and accessories, and includes a version of Microsoft Office 2013 optimized for ARM devices as pre-loaded software. However, while Windows RT inherits the appearance and functionality of Windows 8, it has a number of limitations; it can only execute software that is digitally signed by Microsoft (which includes pre-loaded software and Windows Store apps), and it lacks certain developer-oriented features.
Windows RT was released to mixed reviews from various outlets and critics. Some felt that Windows RT devices had advantages over other mobile platforms (such as iOS or Android) because of its bundled software and the ability to use a wider variety of USB peripherals and accessories, but the platform was criticized for its poor software ecosystem, citing the early state of Windows Store and its incompatibility with existing Windows software, and other limitations over Windows 8.
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