Computational linguistics is the domain dedicated to modeling natural language using computational methods. It is an interdisciplinary field, integrating principles from anthropology, computer science, psychology, mathematics, philosophy. Its focus extends to the creation of tools and systems aimed at processing and generating language effectively. Within computational linguistics, there exist two primary subfields, namely, theoretical computational linguistics and applied computational linguistics. The core aims of this discipline revolve around constructing grammatical and semantic frameworks to describe languages. Research in this field employs various methodologies, including structural, developmental, production, and comprehension approaches. This book aims to provide deep knowledge about this subject. The various subfields within this area of study along with the technological progress that have future implications are glanced at in this text. Those in search of information to further their knowledge will be greatly assisted by this textbook.