1. If the rotational speed of the disk is 100 revolutions per second, the average latency time is _______ milliseconds.

2. If the rotational speed of the disk is 8400 revolutions per minute, the average latency time is _______ milliseconds.

3. A small hard disk contains 5 platters. The data can be recorded on both surfaces of each platter. Each surface has 15,000 tracks. One track can hold 1,000,000 bytes of information. What is the capacity (expressed in bytes, KB and MB) of one cylinder? What is the capacity (expressed in MB and GB) of the entire hard disk? Show your computations.

4. Assuming that the rotational speed of the disk is 12,000 revolutions per minute, each track has 2000 sectors, and seek time is 9 ms, calculate the total disk access time for 1200 sectors. Note that this time will be the sum of seek time, latency time, and transfer time of 1200 sectors. Show your computations.

5. Assume that a PCI-Express bus consists of 32 lanes. Each lane is capable of a maximum data rate of 600 MB per second. Lanes are allocated to a device 1, 2, 4, 8, 16, or 32 lanes at a time. Assume that the PCI-Express bus is connected to a high definition video card that is supporting a 1920 1080 true color (3 bytes per pixel) progressive scan monitor with a refresh rate of 150 frames per second. How many lanes will this video card require to support the monitor at full capability? You must show your calculations.