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Unix rule
(lemmy.ml)
Be sure to follow the rule before you head out.
Rule: You must post before you leave.
You could also just use a VGA or DVI to HDMI on a compatible card which supports DOS, you'll have to pump in external sound but that's already the case on Most Dos machines who's soundcard is external, and since DOS and its software library doesn't exactly support modern soundcard standards.
There is a TSR now for DOS that emulates Sound Blaster on some Intel audio chipsets.