Electrical engineering is the technological field responsible for the design and development of components that make modern devices functional and efficient. In a computer, for example, the central processing unit (CPU) is just one of thousands of necessary parts that are designed and managed by electrical engineers. Other electrical components include those that handle energy distribution, integrate measuring sensors, process various signals, control voltage levels and produce outputs such as sound and images. This complex orchestration of components ensures that computers and other electronic devices operate reliably and effectively.