[Please lay out the workings and reasoning in an orderly fashion, as per the question's sequence] (a) A hypothetical magnetic disk drive has the following characteristics: 8 platters, 2048 tracks/platter side (recorded on both sides), 128 sectors/track on all tracks. 1 sector = 512 bytes (i) What is the storage capacity of this drive in Gbyte? Show your working. Note: 1 Gbyte = 230 bytes (8 marks) (ii) What is the sequential access time in milliseconds if the drive in (a) is spinning at 7200 rpm? Show your working or explain your answer. (3 marks) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - (b) Hard disk and optical disc are considered as secondary storage devices. Describe the disadvantages of hard disk as compared to optical disc. (7 marks) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - (c) DVD improves on CD and CD-RW technology in several ways. List three improvements of DVD over CD and CD-RW. (3 marks) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - (d) Flat panel display technology has been changing rapidly. Investigate current Liquid Crystal Displays (LCDs) and Organic Light-Emitting Diode (OLED) displays and give ONE advantage and ONE disadvantage for each display. (4 marks) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -