Introduction - If you have any usage issues, please Google them yourself
1, for a given set of as disk access scheduling: Request service ABCDEFGHIJK access track to reach No. 30 50 100 1,802,090,150,708,010,160 2, the requests were a first-come, first served, shortest seek first, and elevator scheduling method of scheduling. 3, the algorithm required to give each disk access order to calculate the average number of mobile channel. 4, assuming that the current read-write head 90 to move the direction of increasing track number.