What operating system do CAD use?

Computer-Aided Design (CAD) software primarily runs on Windows operating systems, as many popular CAD applications, such as AutoCAD and SolidWorks, are optimized for this platform. Some CAD programs are also available for macOS and Linux, although the selection is more limited. Additionally, cloud-based CAD solutions can be accessed from any operating system with internet connectivity. Overall, Windows remains the dominant OS for CAD usage.