If you yearn for the operating systems or arcade games of the past, and are willing to make the effort to bring them back to life, free and open source software is definitely the way to go. Green screens and might-have beens, operating systems and games, BeOS, Amiga OS or DOS can be relived and replayed through a host of emulators, simulators or rewrites in varying stages of completion.

DOSBox is a freely available, cross-platform PC emulator. Rather than attempting to be the technology leader as a business-orientated virtualization environment like VMware or Qemu, DOSBox instead offers a rich set of features aimed at closely recreating the behaviour of a retro gaming PC.