When I create a bezier curve and start working with it, it's not a curve. As seen here, it's a series of straight segments. When I convert it to a mesh, it still looks like a number of straight segments, like in this photo:
I have been told this is handled in rendering, but I'm creating objects to use with a 3D printer, so I want the curve to be smooth. What's going on here and what can I do to make my bezier curves actual smooth curves instead of straight segments?