1. From robot to social robot

1.1 Robot definition

The general definition of a robot proposed by Norbert Wiener is as follows. A robot is a system combining three interacting characteristics:

• perception, i.e. the machine's ability to use its various sensors (cameras, microphones, temperature or humidity sensors, etc.) to retrieve information about its environment, whether or not it is visible to humans. It can also adapt to variations in the environment, if the appropriate sensors allow it to do so;

• information storage and processing,...