hello, there please help me with these questions for computer science from 3.1 The History of Operating Systems 13TH EDITION.

1. Identify examples of queues. In each case, indicate any situations that violate the FIFO structure?

2. Which of the following activities require real-time processing?

a. Printing mailing labels.

b. Playing a computer game.

c. Displaying numbers on a smartphone screen as they are dialed

d. Executing a program that predicts the state of next years economy.

e. Playing an MP3 recording.

3. What is the difference between embedded systems and PCs?

4. What is the difference between time-sharing and multitasking?