6. Describe the differences between sequential access, direct access and random access? 7. How does the principle of locality relate to the use of multiple memory levels 8. What are the differences between direct mapping, associative mapping and set associative mapping? 9. What are the three fields of main memory associated with a direct mapped cache? 10. What are the two fields of main memory associated with an associative cache? 11. What is the difference between special locality and temporal locality? 12. What are the general strategies for using spacial locality and temporal locality