Robot
(1) A device that responds to sensory input. See under robotics.(2) A program that runs automatically without human intervention. Typically, a robot is endowed with some artificial intelligence so that it can react to different situations it may encounter. Two common types of robots are agents and spiders.
A software robot that serves a search engine by exploring the net,collecting web page addresses and page contents,and following links from them to other addresses to collect still more web information.Also known as a worm or crawler.
