Question

what is the function of hard disk drive ​

Answer 1

Explanation:

Function

Hard drives store changing digital information in an almost permanent form. Hard disks magnetic medium can easily be rewritten or erased. A platter can spin up to 3,000 in. per second under its head. You can move to any point on the disks surface instantly. Information is stored onto a file.

When the computer requests its bytes and sends them to the CPU. The data rate, the number of bytes per second that the CPU can deliver, and the time seek, is the amount of time between the CPU’s request of a file and when the CPU receives the first byte.

A hard disk is sealed in an aluminum box along with controller electronics that are attached top one side. Electronics control a read/write mechanism and the motor that spins the platters underneath the board along with highly filtered vents and holes, which allows internal and external air pressures to equalize.

An arm holds a read/write head in the drive. Data is stored on a platter on the surface of the disk in sectors and on tracks.

Answer 2

Hard disk stores all data and instructions of the computer. Hard disk retains data even if the machine is powered off or interrupted unexpectedly because of a power cut.