The hard disk is a device which attached in a CPU where data , program ,and folder are being stored .
The hard disks of computers are usually glass or aluminum coated with a very thin layer of fine grained magnetic material.
two types - magnetic in the form of magnetic tape,magnetic disc and optical in the form of compact disc.
Hard-disks are coated with iron oxide because it reacts to a magnetic source ! The information on a hard-disk is read and written by a magnetic 'head' which scans across the surface as the disk rotates.
"Disc" refers to optical media, such as CDs or DVDs. "Disk" refers to magnetic media, such as hard drives. So the answer depends on which drive you are referring to; most have both an "optical disc drive", and a "hard disk drive".
A magnetic platter is something that is found in your computerÃ?s hard drive. It is the actual place where the data is stored, is shaped like a flat disc, and made of metal.
Y
No, it is an optical disc. A hard disk is defined as a device that stores data on spinning magnetic platters. Although a CD is 'hard' (rigid) as opposed to the flexible inside of a floppy disk, that does not classify it as a hard disk.
a magnetic theft alarm sensor
Reformatting a hard disc will wipe the contents from the hard disc. You will need to backup the contents of the hard disc onto an external disc before reformatting and then copy the contents back to return it to the newly reformatted disc.
magnetic disc
no