Hard Drive Data Recovery - A Basic Understanding of Tracks & Sensors

Inside the hard drive the platters are structured to facilitate the storage and retrieval of data. Each platter then is filled with tracks, thousands & thousands of tracks. These tracks are jam-packed on the platter in concentric circles, imagine the rings of tree.

Each track is then broken down into sectors. A sector, as a rule, holds 512 bytes of data, this is usually the minimum quantity of information which is independently addressable for storage on a hard drive disk. Today, harddrive platters have thousands of sectors in a single track.