It says "DOS subsystem for Linux". The way I'm reading it: 1. It's for Linux (so Linux is the host). 2. It creates some subsystem that runs DOS (either emulat

It says "DOS subsystem for Linux". The way I'm reading it: 1. It's for Linux (so Linux is the host). 2. It creates some subsystem that runs DOS (either emulated, virtualized or translated like Wine is doing for Windows on Linux). That can allow running DOS games on Linux for example, instead of using DOSbox for it.