History: What is the definition of a Robot?

What is the definition of a Robot?

• A machine which can think for itself, especially if the thought processes are logical
  ((((((((((
• A machine capable of carrying out a complex series of actions automatically, especially one programmable by a computer.
  ((((((((((
• Any machine which can follow instructions
  ((((((((((
• A machine which resembles a human being
  Great work!!!!