| 摘要 |
PCT No. PCT/GB80/00118 Sec. 371 Date Mar. 26, 1981 Sec. 102(e) Date Mar. 26, 1981 PCT Filed Jul. 11, 1980 PCT Pub. No. WO81/00479 PCT Pub. Date Feb. 19, 1981.A disc file, for the storage of retrievable, informational data, on rotating media, where the media is subject to attrition from the mechanical interaction with its surface of an adjacently disposed, radially mobile transducer, the attrition limiting the operational life expectancy of the media by its ultimate effect of destroying, in whole or in part, the data storage properties of its surface, is provided with an apparatus which, by enforcing the unceasing transport of the transducer across the surface of the media, whenever it is not required, by the disc file, that the transducer be adjacently disposed to any specific radius, on the media, disperses the effects of attrition across the entire surface of the media, so eliminating the early destruction of the media resultant from localization of the attrition, thereby extending the working life expectancy of the media. |
