Section 17.3
Review Questions
Data encoding techniques for disk drives

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1. Sometimes there are little holes in disk drives that enable the electronics to determine where sectors start. If this is so, we say the disks are...

2. Are all 1's and 0's on the surface of a disk surface really data?

3. How would the data pattern 1101 be stored using Manchester encoding?

4. What do we call it when the electronics lose sight of the boundaries between bits and begin to misinterpret the patterns?

5. How would a long sequence of the same bit values cause problems? For example, 000000000.... or 1111111111....

6. Why is Manchester encoding good in this kind of situation?