FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -The platter is a flat aluminium disk, although they may also be glass or ceramic, and this is where the data on a hard disk drive is stored magnetically. A hard drive may have multiple platters stacked up depending on storage capacity.

Detailed explanation-2: -The hard drive contains a spinning platter with a thin magnetic coating. A “head” moves over the platter, writing 0’s and 1’s as tiny areas of magnetic North or South on the platter. To read the data back, the head goes to the same spot, notices the North and South spots flying by, and so deduces the stored 0’s and 1’s.

Detailed explanation-3: -Disk platters The disks in a hard drive are called platters and this is where your data is stored. There are typically between 1 and 5 platters stacked on a central spindle, with data being stored on both sides of each disk. Each platter is made of either aluminium, glass or a ceramic material.

Detailed explanation-4: -Data is stored on the surface of the platter using organizational elements known as sectors and tracks. Tracks are concentric circles that surround the entire platter. Sectors are wedges that, when grouped together, form a track.

Detailed explanation-5: -The hard drive platters store your data, so permanent damage to the platters means permanent data loss. No current data recovery technology can restore the lost material (although there are technologies for reading around the damaged areas-we’ll explain those in another post).