Computer science is the study of computers and computational systems. It encompasses both the theoretical and practical aspects of computing, including algorithms, data structures, and software design. This field plays a crucial role in the development of technology that powers our daily lives, from smartphones to complex databases. In addition to programming and software engineering, computer science also explores areas like Artificial Intelligence and Machine Learning. These subfields focus on creating systems that can learn from data and make decisions, revolutionizing industries such as healthcare, finance, and entertainment.