All 5 of these questions come from the Modern Operations Systems text fourth edition. Chapter 2 pgs 174-176

36.) Fast food restaurant has four kinds of employees: (1) order takers, who take customers orders; (2) cooks, who prepare the food; (3) packaging specialist, who stuffs the food into bags; and (4) cashiers, who give the bags to customers and take their money. Each employee can be regarded as a communicating sequential process. What form of the interp0rocess communication do they use? Relate this model to the processes in UNIX.