Po17

  

1) How do block oriented I/O devices and stream oriented I/O devices differ? Give an example of each type of device. 

2) When performing a disk read or write, what delay elements are involved? 

3) Briefly describe the 7 RAID levels. 

4) List and briefly define five types of file organizations. 

5) What are the typical file access rights that may be granted or denied to each user ?