Chapter 3 - Operating Systems - Section 3.1 - The History of Operating Systems - Questions & Exercises - Page 144: 1

A traditional example is the line of people waiting to buy tickets to an event. In this case there might be someone who tries to “cut in line,” which would violate the $\color{blue}{ FIFO } $ structure.

A traditional example is the line of people waiting to buy tickets to an event. In this case there might be someone who tries to “cut in line,” which would violate the $\color{blue}{ FIFO } $ structure.