Holographic advance aids storage
15 06 2007Magnetic disks have a storage density of about 37.5Gb per square inch. A US firm says it has set a commercial data storage record by achieving 515 gigabits (Gb) per square inch. InPhase Technologies says it reached the level using a holographic drive, which has a higher capacity than conventional magnetic storage media. It said the technology could eventually lead to a holographic disc that could hold more than 100 DVD-quality movies.InPhase expects to unveil its first holographic drive later this year, with products of up to 1.6 terabyte coming.
Holograms use a three-dimensional image generated by lasers to store information. The concept has been around for several decades but the optical storage technology has only become feasible in the last few years.
Sources: http://news.bbc.co.uk/2/hi/technology/4857306.stm
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