EntityQ2488408· pop 12· linked from 55 articlespositronic brainSign in to savescience fiction device in Asimov's workConnectionsRobot seriesEntityThree Laws of RoboticsEntityEarthConceptmathematicsEntityscienceEntityhumanEntitypsychologyEntitysoftwareEntityInternational Standard Book NumberEntityIsaac AsimovEntitymachineEntityplatinumEntityrobotEntityiridiumEntityscience fictionEntityconsciousnessEntitycentral processing unitEntityroboticsEntitypositronEntityGoogle BooksEntityCategoriesFictional computersFictional story elements introduced in 1939Foundation universe