1. What is the significance of the window manager in current GUI shells? 2. What is a real-time operating system? 3. If you have a PC, identify some situations in which you can take advantage of its...

1.
What is the significance of the window manager in current GUI shells?

2.
What is a real-time operating system?

3.
If you have a PC, identify some situations in which you can take advantage of its multitasking capabilities.

4.
On the basis of a computer system with which you are familiar, identify two units of application software and two units of utility software. Then explain why you classified them as you did.

5.
a. What is the role of the user interface of an operating system?

b. What is the role of the kernel of an operating system?