MS-DOS, IBM-DOS, and other DOS derivatives were ... either by running on real hardware or in an emulator. DOSBox and its spin-off projects are also popular ways to run DOS software on more modern ...

FreeDOS is an operating system that can run MS-DOS programs natively and will appeal more to enthusiasts. DOSBox is an emulator that simplifies running MS-DOS programs but comes with some limitations.

For the x86 CPU emulator, he ported Fake86 which is written in C, and created an Arduino IDE environment for it. The MS-DOS 3.3 bootdisk image is stored in flash and is accessed as the A: ...

Back in the days when a 20MB hard drive was a big deal and MS-DOS 3.1 ruled over every plain ... and used an x86 emulator he designed to test every day between 1980 and 2005.