Question:

a) Differentiate between Asynchronous message passing and Synchronous-message passing.

b) If keyboards are the predominant means of interface to human input, then visible displays are the universal means of human output. Explain the three broad categories in which displays can be grouped.

c) The design of the microcontroller starts with an identified need and blank piece of paper or computer screen. What are the four steps involving the evolution of the microcontroller?

d) Describe the term "Validation" in the Embedded System Design context.

e) Give four different actions included in Testing.