1) A computer has a hard disk drive with the following specifications: seek time blocks per track rotation speed: control unit overhead: 12 milliseconds 160 6,000 RPM (revolutions per minute) 2 milliseconds a) How long does it take to access 10240 contiguous bytes on disk? b) If the computer has a 5 GHz clock, how many cycles does the access take? 2) A hard disk drive has 200 blocks per track. Each block comprises 512 bytes. If the data transfer rate for the disk 12.8 Megabytes per second, what is the rotational speed of the disk (in revolutions per minute)