The Virtual OS Museum has opened its digital doors to the public, granting access to more than 570 operating systems that have long since vanished from everyday use. This online archive, accessible at virtualosmuseum.com , lets visitors boot up and interact with historical software environments ranging from early mainframe systems to forgotten home computer platforms. The project stands as one of the most comprehensive efforts yet to preserve computing history in a form that people can actually experience rather than simply read about. The museum’s collection spans decades of computing evolution. Visitors can try CP/M from the late 1970s, various iterations of MS-DOS, obscure variants of Unix from university labs, and even experimental systems that never achieved widespread adoption. Early graphical user interfaces appear alongside command-line only environments, allowing direct comparison of how different teams approached the problem of making computers usable.…