Bochs (box) is a portable IA-32 and x86-64 IBM PC compatible emulator and debugger mostly written in C++ and distributed as free software under the GNU Lesser General Public License. Developed by http://bochs.sourceforge.net/
License: Open Source
Parallels Desktop is a premium virtualization solution tailored for macOS users, offering high performance and seamless integration with the host OS, while Bochs is an open-source emulator that is highly configurable but can be complex to set up and may not offer the same level of performance. Parallels is ideal for users needing robust Windows application support on macOS, while Bochs is suited for educational purposes and low-resource environments.