Coherent and Flex OS, to Lisa and Mac OS. | Image: Virtual OS Museum The Virtual OS Museum isn't a physical place, it's a collection of over 1,700 distinct installations of over 600 operating systems for over 250 platforms that you can download and run via emulation right on your computer. It's largely the work of one man, Andrew Warkentin, a developer and OS historian who has been slowly building his collection of OS images since 2003. The library spans nearly the entire history of computing