80's machine monster movie-making technique
what's the name of the movie making technique during the 80's where it has to show a machine alive?
2 examples i can think of:
1. terminator - at the end the terminator shows his skeleton form walking the kill kyle and conner.
2. robocop - ed-209 moving
When you watch it, it's fake but looks so real.
Could it be similar to a claymation technique but without the clay and instead using action figures/small models/dolls/etc.? OR could it be like move the piece 1 inch, take a picture, then move 1 inch, take a picture, do this repeatly and then play it?
i also want to know it they make it look so real.