1. How virtualizing the CPU affect the user experience? Developer experience? What if the CPU was not virtualized?

2. Why do we want memory virtualization?

3. What happens when you write a C++ program that writes the end of an array? Can this affect other programs?

4. What does thread imply about previous programs?

5. What is atomicity? Is C++ statement atomic?

6.What does OS hard drive virtualization differ from CPU & memory virtualization?

7. How does running multiple programs at the same time increase CPU efficiency?

Thank you!