A new digital preservation project known as the Virtual OS Museum allows users to explore and run around 570 historic and obsolete operating systems.The initiative has gained attention after reports highlighted how easily modern users can access extremely old computing environments, including systems such as NeXTSTEP, Commodore 64 software environments, Apple early systems, Atari platforms, various Unix and Linux distributions, and even rare mainframe and research systems like IBM 1130 and DEC-based machines.

The museum is distributed as a virtual machine running on VirtualBox, which boots into a Debian Linux environment that acts as a launcher for the catalog of operating systems.

Users can download either a full version, approximately 174 GB in size and capable of running offline, or a lighter 14 GB edition that downloads operating system images on demand from the internet.

Once installed, users can select from a large menu of legacy systems spanning decades of computing history, including early personal computers, mobile and embedded systems, academic machines, and industrial mainframes.

The project is largely the work of a single curator, Andrew Wartenkin, who has spent over two decades collecting and organizing operating system images and related software.

While he relies on existing emulation tools rather than writing all virtualization code himself, the effort is notable for its scale and historical breadth.The Virtual OS Museum highlights the evolution of computing interfaces and architectures, offering both educational and nostalgic value.

Users can experience early computing constraints, such as limited memory and hardware-level programming, while also exploring the diversity of systems that shaped modern operating systems.