AI (artificial intelligence) is the simulation of human intelligence processes by machines, especially computer systems. These processes include learning (the acquisition of information and rules for using the information), reasoning (using rules to reach approximate or definite conclusions) and self-correction.
Android (robot) definition: An android is a robot that is designed to look like a human, either in its basic form or so closely it could almost be mistaken for a person.
A robo-advisor is an artificial intelligence (AI) driven virtual financial advisor. Robo-advisors are a type of expert system optimized for financial services.