<ul data-eligibleForWebStory="true">Reactive Artificial Intelligence (AI) is a basic AI system that operates in real time.It responds directly to inputs without memory storage or learning from past interactions.These systems are rule-based and behave predictably for their designed tasks.In 1997, IBM’s Deep Blue defeated world chess champion Garry Kasparov, showcasing reactive AI's power.Deep Blue based its moves on brute-force processing, evaluating millions of moves in real time.This event marked the global introduction of reactive AI for problem-solving.Despite advancements in AI, reactive AI principles are still prevalent in modern tech.Smart devices like thermostats, automatic lights, robotic vacuums, and customer service bots utilize reactive AI for quick decisions.