Wolfram Alpha is a computational knowledge engine that provides answers to questions by using a vast database of curated information. Unlike traditional search engines that list web pages, it computes answers based on structured data and algorithms, making it useful for a variety of fields such as mathematics, science, and finance. Users can input queries in natural language, and Wolfram Alpha interprets them to deliver precise results, including calculations, visualizations, and statistics. It is widely used by students, researchers, and professionals for quick access to factual information and complex computations.