ReactOS is a free and open-source operating system for x86/x64 personal computers intended to be binary-compatible with computer programs and devices. Developed by Aleksey Bragin
License: Open Source
Red Hat is a leading enterprise-level Linux distribution known for its robust security and extensive support, making it ideal for large-scale deployments. In contrast, ReactOS is an open-source operating system aiming to be compatible with Windows applications, making it suitable for users seeking a lightweight alternative.