Why is it done name some secondary storage media that

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Unformatted text preview: time and why? 88. It is said that an optical disk drive requires a more complicated drive mechanism than a magnetic disk drive. Explain why. 89. What are the main parameters on which the storage capacity of an optical disk depends? Write the equation for calculating the storage capacity of an optical disk based on these parameters. 90. A 5%-inch optical disk has 3,00,000 sectors, each of 2352 bytes. What is its total storage capacity? 91. Why are mechanical read/write access arms not needed in case of optical disk drives? 92. Why are optical disk drives slower (have larger access time) than magnetic disk drives? 93. List out the main differences between a magnetic disk drive and an optical disk drive. 94. What are the two commonly used types of optical disks? What is the basic difference between the two? 95. Differentiate between a CD-ROM and a WORM disk. Give some typical uses of each. 96. What is a CD-ROM? Why is it so called? 97. What is "mastering" of CD-ROM disks? How is it done? 98. What is an "infopedia"? Give some typical examples of it. 99. What is the ISO 9660 standard for? How is it useful? 100. What is a WORM disk? What limitation of a CD-ROM disk does it overcome? What limitation it still has? 101. What is meant by "data archiving"? Why is it done? Name some secondary storage media that are used for data archiving. 102. List out the main advantages and limitations of optical disks as a secondary storage device. 103. List out the reasons why optical disks are a better storage medium for data archiving as compared to magnetic tapes or magnetic disks. 104. List out the typical uses of optical disks. 105. Write short notes on: (a) Optical disk drive (b) CD-ROM (c) WORM disk (d) Uses of optical disks (e) Advantages and limitations of optical disks 106. What is a magneto-optical disk? What limitation of an optical disk does it overcome? 107. Explain how data are recorded and read from a magneto-optical disk. 108. List out some of...
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This document was uploaded on 04/07/2014.

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