A computer program repetedly does the following tasks: read a 4 KB block from the hard disk, process the data and generate a 4 KB block, and store the new block on the disk. The program is fully dedicated for the above tasks without any overlap between the I/O operations and processing. The processing task takes 10 million clock cycles and the processor clock rate is 800 MHz. The data is organised as a continuos stream on a track. Determine the overall performance of the system in terms of blocks prcessed per second. Assume the following parameters for the hard disk drive:
(a) disk roration speed = 10000 rpm
(b) transfer rate = 145 MB/sec
(c) controller overhead = 1 msec
(d) average seek time = 12 msec