Solve the problems listed below.  
Please refer to ``Operating Systems Concepts'' (4th edition) u
by Silberschatz and Galvin.  Assignment is due: 5pm, 26th April.  

4th Edition     5th Edition
----------------------------
7.9             7.9
8.7             8.7
8.8             8.8
8.9             8.9
9.1             9.1
9.4             9.4
9.6             9.6
9.20            9.20
10.7            10.7
10.10           10.10
11.2            11.2
11.4            11.4
12.1            13.1  
12.4            below

      When the average queue length is small, all the u
      disk-scheduling algorithms reduce to FCFS scheduling.
      Explain why this assertion is true.

12.6            13.8
13.8            19.8
13.9            19.9