graphics?

are you able to use graphics in dos programs?
if so how?

You'll probably find that one has been asked before.

I think you can draw basic polygons and circles using header files such as <graphics.h>. I was able to create Circles with my Turbo C++ 3.0

Not sure about Sprites and Backgrounds which would be used in a game. I think Allegro and stuff can preform functions and stuff like that.