Computer engineering, the fastest growing engineering field for the past few years, is a very broad discipline which addresses the relationship and interactions between software and hardware in solving real engineering problems. This includes such diverse areas as: biomedical devices, home automation, games and toys, environmental controls, automobile control systems and intelligent vehicle highway systems, industrial robotics, voice/speech recognition, computer intelligence, networking, and wireless communications. The phenomenal growth in this field has been fueled by rapid advances in integrated-circuit microprocessors and solid-state memories, which have brought about enormous computing power in small packages and at low cost. The telecommunications system provides a perfect example of the integration of the newest technologies in a large, complex, electronic system controlled by computers and micro-processors. Fiber optics, networking and wireless communications are among the many technologies incorporated into the telephone system in recent years. Computers have been added to control the system and provide many specialized custom services. One of the most important tasks of the computers is to determine the best path for routing a call and to complete the connection to the destination.