We begin with the basics. What exactly is AI? We demystify the term by breaking it down into its fundamental components: algorithms, machine learning (ML)Machine Learning (ML), neural networksNeural Networks and knowledge-based systems (KBS)Knowledge-Based Systems. This chapter makes it clear that AI is not just a distant vision of the future, but already a part of our everyday lives. Artificial Intelligence (AI) is one of the most fascinating and revolutionary technologies of our time. AI refers to the ability of computers or machines to mimic human intelligence. This includes performing tasks that typically require human intelligence, such as learning, problem-solving, and decision-making. Whether you have a positive attitude toward AI or want to keep it out of your life for as long as possible, AI is already here and will continue to spread. AI has the potential to transform nearly every aspect of our daily lives, just as computers entered almost every household in the 1990s, or as smartphones have become ubiquitous. Many who long claimed they did not need one now own one.