Explain a Technical Concept to a Non-specialist, engineering homework help

Write a one-paragraph explanation for each of the following topics. 250-300 words (per paragraph). Explain these technical topics to a non-specialist using accessible language and the appropriate level of detail; Apply the principles of clear, concise, noise-free writing;
1. Describe how a closed-loop control works. For instance, take the example of the cruise control in a car. Discuss what the controller is measuring, what it is actuating, what happens when you transition from flat to a hill, and what happens if the controller is poorly tuned. Or describe a different closed-loop control system.
2. Describe how a complex system, such as a computer, is constructed from basic building blocks (bits, bytes, memory, CPU)