They are using the SimH DPS8M emulator. Here's a good page about how to set it up yourself: https://multicians.org/simulator.html https://multicians.org/simula

They are using the SimH DPS8M emulator. Here's a good page about how to set it up yourself: https://multicians.org/simulator.html https://multicians.org/simulator.html Unfortunately, while I'm aware of at least one preserved Honeywell DPS-8/70M at the Computer History Museum, I'm unaware of any running examples.