mercredi 31 décembre 2014

A revolutionary data storage prototype



 At present , the storage of data on optical media ( CD, DVD
 Blu-ray ) and digital ( USB , SD card ) are not flawless. even
 optimal storage conditions , data may become unreadable at
 above 10 years . But the Japanese manufacturer Hitachi may have found the solution.
Imagine a fire destroyed your apartment or workplace. your equipment
 IT would be destroyed and your file backups , whatever the sup-
 port. But computers may soon know a breakthrough
 in the field of data storage . The Japanese giant Hitachi has unveiled a concept
 unpublished. The prototype is a small rectangular piece of quartz , laser engraved . It has a
 thickness of 2 mm and an area of ​​2 cm². With 4 layers of engravings, its
 storage density is close to CD , with about 6 MB per cm² surface.
 Hitachi says it would be very easy to increase the storage density by adding
 additional layers of engravings.
 But where this quartz-based prototype is different from other media, it is in the
 field strength , and hence its durability .
 It would be able to withstand the flames, radio waves , chemicals ( quartz is also commonly
 ment used in chemistry labs ) and liquids. The data could be preserved eternally
 LEMENT unless the glass is broken . But this weakness could quickly disappear if Hitachi manages to make this
 unbreakable material . Hitachi prototype also solve the problem of old surfaces become obso-
 lete and complicate the reading of stored data .
 Gradually, as technologies evolve , the old equipment will require costly mainte-
 nance , transcoding and conservation. This is also the case today for the data stored on
 vinyl records , audio and VHS cassettes. However, the information stored on the quartz would be readable with
 simple optical microscope. Thus, in the future , regardless of the reading technology used by a computer , if it
 is able to read the binary data stored on the quartz , it will be interpreted.
 Hitachi plans to market its new technology in 2015 , but researchers plan to offer soon
 2013 this storage system to public organizations that require a massive archive of information.

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