Magnetic Data Storage

Magnetic Data Storage Photo

Magnetic storage  is the storage  on a magnetized medium. Magnetic storage utilizes different patterns of magnetization in a magnet sable material to store data in non-volatile memory. The information is retrieved using one or more read/write heads. The first magnetic data stores used information stored on the surface of drums than disks. Drums are easy to design with the required acceptances and read/write heads could be provided for each track, staggered around the circumference. There was  no head movement to control which made the extreme access time quite short one revolution of the drum. With multiple heads, data could be transported “word parallel” so data transmission rates might be quite high, compensating for the slow, non-random access.

Magnetic tape is one of the older types of magnetic storage media. The magnetic tape recorder was created in 1928 and was mainly used for analog audio recordings. Before music CDs were introduced in the 1980s, movable music devices used magnetic tape in the form of music cassettes. Early computers modified this technology to store digital information. One of the main weaknesses is that information on a tape can only be retrieved in a very sequential fashion., computer systems typically access data in a non-sequential manner

  • Magnetic Recording Systems and Modeling
  • Magneto-Optic Recording and Alternative Magnetic Storage
  • Energy Assisted Recording
  • Hard Media Interface and Tribology

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Magnetic Materials 2017
Magnetic Materials 2017
Magnetic Materials 2017
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