Computer Science (CS) is the study of computers, software, data, algorithms, and computational systems. It focuses on how computers work, how programs are developed, how information is processed, and how technology can be used to solve problems.

Simple definition:

Computer Science is the study of computers and computational methods used to process information, develop software, solve problems, and create digital technologies.

Computer science is much broader than simply learning how to use a computer. It includes programming, artificial intelligence, software development, cybersecurity, databases, networks, algorithms, and many other areas.