Mechatronics is a concentration of mechanical, electrical and computer sciences that focuses on the precision control of mechanical and machine systems. Control is achieved in today's modern engineering systems electronically through the use of sensors, actuators and microprocessors. The marriage of modern control systems with mechanical devices is key to the design and development of high-performance engineering systems. Just a few examples of computer-controlled mechanical systems are robots, engine-fuel systems, hybrid automobiles, autonomous aerospace vehicles, stair-climbing wheelchairs, garage door openers and alternative power generation systems. Through modern Mechatronics sciences, new avenues of thinking and design can greatly enhance the utility, performance and efficiency of modern machinery.