ReactOS
ReactOS is a free and open-source operating system designed to be binary-compatible with computer programs and device drivers developed for Microsoft Windows NT versions. The project aims to provide a fully functional Windows-compatible environment without requiring a Windows license. ReactOS is written primarily in C, with some components in C++ and assembly language.
ReactOS is still in the alpha stage of development, meaning it is not yet suitable for daily use as a primary operating system. However, it can run many Windows applications and drivers, particularly those written for older versions of Windows such as Windows 2000 and Windows XP. The operating system is released under the GNU General Public License (GPL).
History
The ReactOS project was founded in 1996 as a Free Win95 project, later renamed to ReactOS. Early development was slow and faced challenges, including a temporary suspension in 2004 due to legal concerns over code similarity with Windows. A complete code audit was performed, and development resumed with a clean codebase. Major milestones include the release of version 0.3.0 in 2007, which introduced a usable graphical user interface, and version 0.4.0 in 2016, which brought improved hardware support and stability.
Features
- Binary compatibility: ReactOS aims to run unmodified Windows applications and drivers, using its own implementation of the Windows API (Win32) and kernel.
- Open source: The entire source code is available for study, modification, and redistribution under the GPL.
- Hardware support: Supports x86 and x86-64 architectures, with drivers for many common hardware components, though support is less comprehensive than Windows.
- User interface: Provides a desktop environment similar to classic Windows, including a Start menu, taskbar, and file manager (ReactOS Explorer).
- Development tools: Includes a build environment based on the GNU toolchain and MinGW.
Development
Development is coordinated by the ReactOS Foundation, a non-profit organization. The community contributes through coding, testing, documentation, and translation. Regular test builds are available, and a roadmap outlines goals for future releases. The project collaborates with other open-source projects such as Wine to share compatibility improvements.