Embedded System

Q1-9 Should an embedded computing system include software designed in more that one programming language? Justify your answer.

Q1-22 Draw a class diagram for the classes required in a basic microwave oven. The system should be able to set the microwave power level between 1 and 0 and time a cooking run up to 59 minutes and 59 seconds in one-second increments. Include * classes for the physical interfaces to the telephone line, microphone, speaker, and buttons.