$($Hard Disks$)$ Why is accessing to a hard disk drive so slow? Please explain the reason which must include the whole words below. You may use a same word many times as you like. Put underline on the following each word in the explanation. You can also add some figures.

$($bitmaps$,$ inodes, data blocks, seek, rotation time, target sector, write, read, arm, disk scheduling algorithm$)$

Don't use AI$!$