CALL is an interdisciplinary area of study influenced by different disciplines like human-computer interaction, artificial intelligence, computational linguistics, applied linguistics, psychology, and instructional technology and design. These disciplines contribute to conceptualizing CALL by providing models and enriching its development. Psychology influences instructional design and technology through cognitive learning theories. Artificial intelligence informs human-computer interaction and design of interactive systems. Computational linguistics has applications in machine translation and language data processing. Developments in these related fields impact the conceptualization of CALL.