Modular components form a robotic assembly. the mod-components include modules and tools, each have a set of functions and capabilities, are rapidly configured-reconfigured to function cooperatively, creating a configurable robotic assemblage. Each mod-component incorporates a standardized connector mating with any other standardized connector in an interchangeable manner providing mechanical stability, power, and signals therebetween. Each mod-component incorporates a processor, data storage for mod-component identity, status, and programmable functionality, and for responding to commands. Storage is reprogrammed while the robot is operational, altering both commands and responses. After interconnection, inter-module power and communication are established and each modular component identifies itself and its functionality, thereby providing “plug and play” configuration.