Andrew Warkentin built a Virtual OS Museum with 1,700 installs for your desktop

The Virtual OS Museum is not a museum you visit. It is a library you download. And it is built by one person, Andrew Warkentin, a developer and OS historian, who has assembled over 1,700 distinct installations of over 600 operating systems for over 250 platforms that you can run via emulation right on your computer.

That sounds like a niche hobby until you zoom out: the collection spans nearly the entire history of computing. It reaches all the way back to 1948's Manchester Baby, the first stored computer program, and it moves forward to early builds of Android from 2011. The hook is simple. You are not just reading about operating systems. You can experience them on your desktop, with the original feel of different eras of computing.

So why does this matter beyond curiosity? Because operating systems sit underneath everything. They shape how software thinks about memory, time, devices, networking, and security. When those foundations change, entire ecosystems can follow. A museum of runnable OS images is different from a museum of screenshots. It lets you observe the software environment as an active system rather than as static documentation.

Warkentin has been slowly building this collection since 2003. Over that timeline, he has collected a wide mix, including plenty of obscure operating systems. The Verge notes DOS variants and even MOS for the Acorn BBC Micro, alongside better-known names like Coherent and Flex OS, as well as Lisa and Mac OS. That breadth is the whole point. Operating systems are often studied in terms of what succeeded, but the ones that never became mainstream are still technically important because they show alternative design choices and paths that could have influenced later systems.

In practical terms, the museum functions like an emulator-driven archive. Emulation is the bridge that makes old systems runnable on modern machines. From a governance and risk perspective, it also hints at something boards and compliance teams rarely talk about directly: the operational importance of preserving the ability to reconstruct legacy environments. If an enterprise has older systems in the wild, the ability to reproduce the relevant runtime environment can reduce uncertainty during maintenance, migration, security review, and incident response.

It also intersects with a bigger cultural shift. Tech companies have spent years trying to “move fast,” but the longer you operate, the more you discover that institutional knowledge is the bottleneck. Archives like this are a kind of institutional memory for the ecosystem itself. They turn “legacy” into something you can test. If you are building software today, you inherit behaviors, assumptions, and security models from the OSes below you, even when your product is modern.

There is also a second-order implication for investors and operators: runnable provenance is more valuable than searchable lore. Many digital archives are static, and they degrade as tooling changes. Here, the museum is explicitly designed for execution through emulation. That makes it more resilient to the way operating systems and developer environments evolve. If your team needs to validate how an old platform behaves, or just understand why a specific environment produced a certain outcome, a runnability-first library is a stronger asset.

Finally, this matters to anyone thinking about long-term platform strategy. Operating systems evolve through design tradeoffs, hardware constraints, and market adoption. The Virtual OS Museum spans the arc from early stored-program concepts in 1948 to early Android builds in 2011. That timeline is not just a trivia path. It is a reminder that platforms have lifecycles, and that the technical lessons of each lifecycle do not vanish when the market declares winners. They remain, waiting to be replayed.