Computer science is the scientific and practical approach tocomputation and its applications. It is the systematic study of the feasibility, structure, expression, and mechanization of the methodicalprocedures (or algorithms) that underlie the acquisition, representation, processing, storage, communication of, and access toinformation. An alternate, more succinct definition of computer science is the study of automating algorithmic processes that scale. A computer scientistspecializes in the theory of computation and the design of computational systems.[1]

Its fields can be divided into a variety of theoretical and practical disciplines. Some fields, such as computational complexity theory (which explores the fundamental properties of computational and intractable problems), are highly abstract, while fields such as computer graphicsemphasize real-world visual applications. Still other fields focus on challenges in implementing computation. For example, programming language theory considers various approaches to the description of computation, while the study of computer programming itself investigates various aspects of the use of programming language andcomplex systems. Human–computer interaction considers the challenges in making computers and computations useful, usable, and universally accessible tohumans.

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