Artificial Intelligence (AI) refers to the simulation of human intelligence processes by machines, particularly computer systems. These processes include learning (the acquisition of information and rules for using it), reasoning (using rules to reach approximate or definite conclusions), and self-correction. AI can encompass a variety of subfields, such as Machine Learning (where algorithms improve through experience), natural language processing (allowing machines to understand and generate human language), robotics (designing intelligent machines that can carry out tasks), and computer vision (enabling machines to interpret and make decisions based on visual data).

AI applications are numerous and diverse, ranging from virtual assistants like Siri and Alexa to autonomous vehicles, recommendation systems on streaming platforms, and medical diagnostic tools. The prominence of AI is growing in various sectors, including healthcare, finance, education, and entertainment. The goal of AI research and development is to create systems that can perform tasks that typically require human-like intelligence, with the potential for significant advancements in efficiency and capability across many domains.