1) How do block oriented I/O devices and stream oriented I/O devices differ? Giv

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 ?

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