Computational Linguistics is an interdisciplinary field that combines computer science and linguistics to enable computers to understand and process human language. It involves the development of algorithms and models that can analyze, generate, and interpret text and speech, making it essential for applications like machine translation and speech recognition. This field plays a crucial role in enhancing human-computer interaction by allowing machines to communicate in natural language. Researchers in computational linguistics work on various tasks, including sentiment analysis and information retrieval, to improve the way we interact with technology and access information.