information processing ties together Computer Science, Cognitive Science and Linguistics.
One topic that ties all of these fields together is the study of information processing, which is the study of how information is acquired, represented, stored, and used by a system, whether it is a computational system, the human mind, or a language system.
Computer Science focuses on the study of how information is processed by computational systems, including the design and implementation of algorithms and programming languages that can process information in specific ways.
Cognitive Science focuses on the study of how the human mind processes information, including how we perceive, think, and remember.
Linguistics focuses on the study of how language represents and processes information, including the sounds, grammar, and meaning of language and how it is used by humans.
All of these fields are focused on understanding how information is processed, whether by computers, the human brain, or language systems, and how this information can be used to solve problems and improve our understanding of the world.