Forget the cinema, let's get down to reality.
What is a robot?
As soon as we started making machines, we started on the road to robots. Automatons, chess players and writers were even more sophisticated.
Then came the era of cybernetics. We can consider these to be the first robots in the sense that we still understand them today.
Like this dog, Philidog, created in 1928. Its eyes are photoelectric cells, so it can be guided with a torch.

Difficulty **