In August, a robot will begin placing food and drinks on store shelves in Japan. This is a test that the robot's maker hopes will help create a wave of automation in retail stores. Automation is the process of using robots or computers, instead of people, for some jobs. The manufacturer of the robot worker is a Tokyo-based company called Telexistence. Following the test, store operator FamilyMart says it plans to use such robots at 20 stores in and around Tokyo by 2022.