Question: a) b) Briefly describe two technologies to improve the performance of hard disk drive read- write access in a desktop computer. [2 marks] A

a) b) Briefly describe two technologies to improve the performance of hard disk drive read- write access in a desktop computer. [2 marks] A 10000 rpm disk drive has an average 900 sectors per track. Each sector stores 512 bytes of user data. What is the internal transfer rate (in Mbytes per second) of this disk drive? [2 marks] c) Using a schematic diagram, show the construction of a RAID-5 system using four hard disk drives (HDD). [2 marks] d) Briefly state one advantage of using memory cache in hard disk drives. [2 marks] e) Briefly state one advantage of using index-nodes to keep track of file attributes and disk block addresses of files in modern Linux systems. [2 marks]

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