
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unpublished.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.















































