Question: 1) What are level 1 cache and level 2 cache memories (i.e., L1 and L2 caches)? 2) The cache system can be located between the

1) What are level 1 cache and level 2 cache memories (i.e., L1 and L2 caches)?

2) The cache system can be located between the CPU and the MMU (i.e., a logical cache) or between the MMU and the system random access memory (i.e., a physical cache). What factors determine the optimum location of cache memory?

3) What is the meaning of memory hierarchy, and why is this concept of importance to the designer of PCs and similar workstations?

4) What are the basic differences between static RAM and dynamic RAM?

5) Why is it difficult to fully erase data from a magnetic medium such as tape or disk?

6) The most popular (i.e., commercially successful) RAID levels are 1 and 5. Why?

7) A peripheral interface chip may have several internal registers. Explain the techniques available to reduce the number of address lines required to access these registers. Can you think of any techniques (not discussed in this text) that could be used to allow n address lines to select more than 2n registers?

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