Reference no: EM133478528

Question

1. What factors limit the speed of an electrically based processing device?

2. What are the differences between static and dynamic RAM?

3. What improvements are offered by synchronous DRAM compared with ordinary DRAM?

4. Why isn't flash RAM commonly used to implement primary storage?

5. Describe current and emerging nonvolatile RAM technologies. What potential advantages do the emerging technologies offer compared with current flash RAM technology?

6. Describe serial, random, and parallel access. What types of storage devices use each method?

7. How is data stored and retrieved on a magnetic mass storage device?

8. Describe the factors that contribute to a disk drive's average access time. Which of these factors is improved if the spin rate is increased? Which is improved if areal density is increased?

9. Which factors do magnetic storage device manufacturers balance to ensure high capacity and performance at reasonable cost and reliability?

10. Why is the areal density of optical discs higher than the areal density of magnetic disks? What factors limit this areal density?

11. Describe the processes of reading from and writing to a phase-change optical disc. How does the performance and areal density of these discs compare with magnetic disks?

12. List and briefly describe the standards for recordable and rewritable CDs and DVDs. Are any of the standards clearly superior to their competitors?

13. Why should you defragment magnetic disk drives ? Why should you avoid defragmenting SSDs?

14. In what way(s) is/are SSDs an improvement over magnetic disk drives? In what way(s) isn't/ aren't they an improvement over magnetic disk drives

15. Use the Internet to research the costs of the different types of digital certificates: domain validation, EV, wildcard, SAN, machine/computer, code signing, and email. Look up at least three providers of each, and Use the table by listing the type of certificate, the costs, and the length of time the certificate is valid.