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I see. So the A and S can be changed from the camera body?
yes, just like on a digital body if you have an autofocus lense.
The N80 and pronea supports G lenses as well, but you can't use VR with a pronea body. I'm not sure about the n65 and n90s, but they probably work, and this can be looked up online.
All those cameras such behave as a digital body- the body sets the aperture in program mode, or you can override it. You don't touch the aperture ring at all, unless it's a manual focus lense which only work on the F5 and F6. The rest require AF lenses with the aperture locked at the smallest value.
Nikon is pretty damn good about their compatility for anything but a speedlight. In fact, they did a great job with the F mount and adding stuff like AF, electronics and all that jazz.
Canon keeps changing their mounts and has really poor compatibility with their own bodies and lenses.