Artificial Intelligence (AI) refers to the simulation of human intelligence processes by machines, particularly computer systems. These processes include learning, reasoning, problem-solving, perception, and language understanding. AI works by processing large amounts of data and using algorithms to learn patterns, make decisions, and improve over time. The core of AI consists of machine learning (ML), where algorithms analyze data, learn from it, and make predictions or decisions. Additionally, neural networks, which mimic the human brain's structure, help in pattern recognition and decision-making. AI also involves natural language processing (NLP) for understanding and generating human language, and computer vision, which enables machines to interpret and understand visual data.