iRobot, the company behind the Roomba robot vacuum, presents an autonomous lawnmower-- Terra, a robot complete with state-of-the-art mapping and navigation technologies, as well as high-quality mowing.
According to the company, the Terra uses Imprint mapping technology in mow the lawn just like people do, navigating a yard in straight, back-and-forth lines. The robot even remembers where it is in the yard and where it still needs to cover, in case it runs out of battery. In case of such a situation, the robot returns to base to recharge before resuming on mowing duties.