Question: b) A multi-plattered hard disk is divided into 500 sectors and 40,000 cylinders. There are six platter surfaces. Each block holds 1,024 bytes. The disk

b) A multi-plattered hard disk is divided into 500 sectors and 40,000 cylinders. There are six platter surfaces. Each block holds 1,024 bytes. The disk is rotating at a rate of 7,200rpm. The disk has an average seek time of 12msec. i. What is the total capacity of this disk? ii. What is the disk transfer rate in bytes per second? iii. What are the minimum and maximum latency times for this disk? What is the average latency time for this disk? (7 marks) c) What is an interrupt service routine (ISR)? (2 marks) d) In each of the following cases, show which type of interrupt (maskable interrupt or nonmaskable interrupt) it belongs to: - Give a higher response time - Help in handling the tasks that are of a higher priority - Use in the interfaces with the peripheral devices (3 marks) e) A 1920-pixel by 1080-pixel display is generated on 14-inch (diagonal) monitor. i. What is its aspect ratio? (1 mark) ii. How many dots per inch are displayed on this monitor? (3 marks) iii. What is the size of an individual pixel? Would a 0.15mm pixel resolution monitor be sufficient for this display? (3 marks) f) Both RAID Storage and Data Backup maintain duplicate copies. Are they exactly same? ( 4 marks)

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