Avionics refers to Electronic systems used in Aviation, and the word itself is a blend of Aviation and Electronics. Avionics are not only essential for today’s commercial and military aircraft to fly, but also enable their integration into the overall traffic management system. For safety critical applications such as navigation, aviation imposes requirements and constraints on the electronics system which are far more stringent than for example in the consumer electronics domain. This has an impact on the design of the Avionics.