Exercises

1:	Load a module. What device file does the module become in the filesystem?
2:	Find the major and minor number for the device file that was loaded.
3:	When would it be advantageous to use the deadline I/O scheduler instead of an anticipatory I/O scheduler?
4:	When would it be better to use the no-op I/O scheduler instead of the anticipatory I/O scheduler?
5:	What are the characteristics of a Northbridge controller and a Southbridge controller?
6:	What is the advantage of rolling up so much function into a Superio chip?
7:	Why would we not see graphics or network communications rolled into a Superio chip at this time?
8:	What is the main difference and advantage of a journaled filesystem, such as ext3, over a standard filesystem like ext2?
9:	What is the basic theory behind anticipatory I/O scheduling? Is this methodology better suited for a hard disk drive or RAM disk?
10:	What is the main difference between a block and a character device? Give examples of each.
11:	What is DMA? Why is it an effective way of moving data?
12:	What was the original use for the teletype machine?