Logic design is a branch of electrical engineering and computer science that focuses on creating circuits and systems that perform specific functions based on logical operations. It involves using basic elements like AND, OR, and NOT gates to build more complex structures, such as adders and multiplexers, which are essential for processing information in computers and other digital devices. In logic design, engineers use Boolean algebra to analyze and simplify logical expressions, ensuring that circuits operate efficiently. This discipline is crucial for developing microprocessors, memory units, and various digital systems, enabling the functionality of everything from smartphones to advanced computing systems.