What are the difference between the single-server and the multiple-server. waiting line systems

1. (a) Differentiate between the single-server and the multiple-server waiting line systems. (b) List three components of a waiting line system. (7+3=10 marks) 2. For each of the following queuing systems, indicate whether it is a single- or multiple-server model, the queue discipline, and whether its calling population is infinite or finite. a. Hair salon b. Bank c. Laundromat d. Doctor's office e. Advisor's office f. Airport runway g. Service station h. Copy centre i. Team trainer j. Mainframe computer (30 marks) 3. During registration at State University every semester, students in the college of business must have their courses approved by the college adviser. It takes the adviser an average of 12 minutes to approve each schedule, and students arrive at the adviser's office at a rate of 3 per hour, according to a Poisson distribution. A. Calculate the operating characteristics (Po, L, Lq, W, Wq and Pw) for this system. (3*6= 18 marks) B. The dean of the college has received has a number of complaints from students about the length of time they must wait to have their schedules approved. The dean therefore add an additional college adviser to the system described in this problem so that it is now a multiple-server queuing system with two channels. Calculate the operating characteristics required in part A. (5*6= 30 marks) (Total 88 marks)