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
VMware Workstation Player is a commercial-grade virtualization tool providing high performance, user-friendly features, and extensive support, making it suitable for developers and businesses. In contrast, Bochs is an open-source emulator focused on educational use and low-level OS testing, offering flexibility and low cost but at the expense of performance and ease of use.