Five lines about hard disk
Answers
Answer:
hard disk, also called hard disk drive or hard drive, magnetic storage medium for a computer. Hard disks are flat circular plates made of aluminum or glass and coated with a magnetic material. Hard disks for personal computers can store terabytes (trillions of bytes) of information.
Explanation:
1 . a piece of hard plastic that is fixed inside a computer and is used for storing data and programs permanently .
2. Today's computers typically come with a hard disk that can contain anywhere from billions to trillions of bytes of storage.
3. A hard disk is actually a set of stacked disks, like phonograph records.
4. Each disk has data recorded electromagnetically in concentric circles, or tracks, on the disk. A head, similar to a phonograph arm but in a relatively fixed position, writes or reads the information on the tracks.
5 .A hard drive consists of several major components inside its casing. These include the platter for storing data, a spindle for spinning platters, a read/write arm for reading and writing data, an actuator to control the action and movement of the read/write arm and a logic board.