Magnetic recording hard disk thin film media  

Oleh:

Lodder, J.C.

Jenis: Article from Books - Reference
Dalam koleksi: Handbook of Magnetic Materials Volume 11, page 291-405.
Topik: Magnetic; Nanotechnology
Fulltext: MagnetcMaterials_11-2.pdf (2.84MB)

Isi artikel

Information has been stored throughout history. It started with cuneiform and cavepaintings a long time ago using primitive technologies. Perhaps the oldest example of a recorded transition of magnetization can be found in the magnetic rock formation situated on the bottom of the Atlantic Ocean (Cox et al. 1967). Nowadays, information storage plays a major role in our society by using advanced technologies and production methods to produce recording apparatus for audio, video and data applications. In 1888 an original method for recording sound signals was published by Oberlin Smith (Smith 1888). He described how a thread of cotton or silk covered with small particles (the medium) could record and play. In August 1898 Valdemar Poulsen invented his Telegraphone which he demonstrated at the World Fair in Paris in 1900 (Poulsen 1890). This first working magnetic recording apparatus was honoured with the Grand Prix.

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