A Virtual Instrumentation system consists of an industry-standard computer or workstation equipped with powerful application software, cost-effective hardware such as plug- in boards, and driver software, which together perform the functions of traditional instruments. Virtual instruments represent a fundamental shift from traditional hardware-centred instrumentation systems to software-cantered systems that exploit the computing power, productivity, display, and connectivity capabilities of popular desktop computers and workstations. In combination with powerful software, engineers can create custom-defined measurements and sophisticated analysis routines. Virtual instrumentation has been widely adopted in test and measurement areas and is rapidly making headway in control and design areas.