a. If a 1 mega bit RAM chip contains 4 bits per location (512x512x4), then show 4M byte memory organization. [3] b. For the 8-bit word 10111001, the check bits stored with it would be 0111. Suppose when the word is read from memory, the check bits are calculated to be 1011. What is the data word read from memory? [2] c. Draw DDR-SDRAM timing diagram with burst length 5 and CAS latency 4. How DDR4 organization enhances data rates over DDR2? d. Depict how the nonvolatile RAM technologies are likely to fit into memory hierarchy? [3.5] [1.5]