Magnetic Disk

Magnetic Disk

• Disk is a circular disc made of certain materials (metal or plastic) surface coated with a material that can be magnetic.

• Mechanisms read / write head using read or write head is called a spindle conduction oil.

• Design physical, head are stationer disc while the disk rotates in accordance control.

• Two methods of data on the layout of diak, the constant angular velocity and multiple zoned recording.

• Disk organized in the form of ring-ring concentration called tracks.

• Each track on the disk separated by a gap (gap: prevent or reduce the reading and writing errors caused melesetnya head because of interference or magnetic fields).

• A number of bits that will occupy the same track that is available.

• As to the disk, then the density (dens Ty) disk will be large.

• Data sent to the memory of this in the form of a block, block generally smaller capacity of the track.

• Block-block data stored in the disk-sized blocks, called the sector.

• Track usually filled some sectors, generally 10 to 100 each tracknya sector.