And for that reason, xyproto's post is trivially true, in the practical sense. Hardware today doesn't implement any compatibility mode that would be useful to o

And for that reason, xyproto's post is trivially true, in the practical sense. Hardware today doesn't implement any compatibility mode that would be useful to original DOS-era programs. Dosbox provides that compatibility mode, acting as a translation layer for getting+putting audio samples, simulating FM synthesis, etc. No DOS game's gonna directly support AC97 or HD Audio codecs. > there are no dos drivers There were commonly configuration and settings programs that came with hardware. Expanding beyond audio hardware, mice, CD-ROMs, EMS, and others loaded TSRs that acted more directly like drivers.