Artificial intelligence (AI) refers to the simulation of human intelligence in machines that are programmed to think, learn, and perform tasks that typically require human cognitive functions. AI systems can analyze data, recognize patterns, make decisions, and adapt to new information, often improving their performance over time through techniques such as machine learning. There are various types of AI, including narrow or weak AI, which is designed for specific tasks (like voice recognition or image classification), and general or strong AI, which aims to replicate human-like understanding and cognition across a wide range of activities. AI has applications in numerous fields, including healthcare, finance, transportation, and entertainment, and its capabilities continue to expand as technology advances.