Introduction to computer science, including its history and key concepts Computer science is the study of the design, implementation, and applications of computer systems. It encompasses both the hardware and Dirt aspects of computing. Computer science is a relatively new field that has developed out of the fields of mathematics, electrical engineering, and computer engineering. The field of computer science is divided into several subfields, each of which focuses on a particular aspect of computing. The major subfields of computer science are: 1. Theoretical computer science: Theoretical computer science is concerned with the mathematical foundations of computing. It includes the study of algorithms, data structures , complexity theory , and formal methods. 2. Software engineering: Software engineering is concerned with the design, implementation, and maintenance of software systems. It includes the study of software development methodologies, software testing, and software project ...