Question

What directs the read/write arm of the hard drive to where data exists and accesses it upon the user's request?

Answer 1

NTFS (New Technology File System) or FAT(File Allocation Table) are used to direct read/write arm of hard drive to where data exists and access it upon user's request

Step-by-step explanation:

Both NTFS and FAT are used but NTFS is fast and optimal and superseed the FAT and supported by windows NT 3.1 and later versions.