Artificial Intelligence (AI) refers to the field of computer science that focuses on the creation of systems and software capable of performing tasks that usually require human intelligence. These tasks include reasoning, learning, problem-solving, understanding natural language, recognizing patterns, and making decisions.

AI can be categorized into two main types: narrow AI and general AI. Narrow AI is designed for specific tasks, such as voice recognition systems, recommendation algorithms, or chatbots. In contrast, general AI refers to a theoretical form of AI that possesses the ability to understand, learn, and apply intelligence across a wide range of tasks, much like a human being.

The development of AI relies on various technologies and methodologies, including machine learning (an approach that enables systems to learn from data), deep learning (a subset of machine learning that utilizes neural networks), and natural language processing (NLP), which helps machines understand and interpret human language.

AI has a wide array of applications across numerous fields, such as healthcare, finance, transportation, and entertainment. It is used for predictive analytics, medical diagnosis, autonomous vehicles, and personalized content delivery, among many other innovative applications. The ongoing advancements in AI technologies continue to shape and revolutionize industries, influencing how people interact with machines and each other in our daily lives.