Device engineering refers to the process of designing, developing and optimizing electronic devices or systems. It involves a combination of hardware and software engineering techniques that are used to create functional prototypes of various electronic gadgets such as smartphones, tablets, computers, sensors, etc. Device engineers work closely with other professionals like electrical engineers, computer scientists, and mechanical engineers to ensure the final product meets all specifications and performs according to its intended purpose. The goal of device engineering is to create devices that are user-friendly, efficient, reliable, and cost effective while also taking into consideration factors such as energy consumption, safety, and environmental impact.