HDD Rust in Peace!!

It is always easy to conduct a research on storage devices as the researcher has a simple job to do.....convert 1's and 0's; a yes and a no; a groove and a ridge.So lots and lots of researchs have been conducted and the result about 10 promising replacement for the old fashioned hard disk and all the 10 replacements 20 times as effecient as our hardisks.

HOLOGRAPHIC STORAGE: First and most probable replacement "THE HOLOGRAPHIC STORAGE".Holographic storage has been talked about for a long time. Indeed the HOLOGRAPHIC VERSATILE DISK(HVD) is being eagerly awaited by people all around the world. This technology uses lasers to record data in the volume of the medium. The idea is not new but only now it is getting the speed.

HOW DOES IT WORK: A laser beam is split into two, the reference beam ( Red ) and the signal beam ( Green ) . A device called Spatial Light Modulator( SLM ) translates 1's and 0's into an optical pattern of light and dark pixels. These pixels are arranged in an array of about a million bits.

The signal beam and the reference beam intersect in the storage medium which is light sensitive and at this point of intersection a hologram is formed because of a chemical reaction in the medium and gets recorded there. For reading the data only the reference beam is used:it deflects off the hologram and a detector picks up the data in parallel.

Optware corporation of Japan have already come out with the HVD which holds 1TB and is the same in size as a regular optical disc. The estimated costs of the disc are about 100$ Only.The HVD player is about $20,000 Only.
Whatever the short-term outcome, holographic storage will probably become the norm, just as DVDs are at present. Whether this media can be used for long-term data archiving will still depend on the stability of the media. The huge capacity does overcome this in some manner—re-writing a few 4TB discs annually would be much more acceptable than 800-fold, if DVD media was used!

What are your opinions on next generation optical media? Will we see the lifespan of new formats decrease and a rapid development of new or will this be artificially slowed to give consumer markets a chance to keep up, as well as increase profits for technology companies? Have you started to use Blu-ray or HD-DVD? If not, do you plan to?

SO ALL OF U GET READY TO SAY GOODBYE TO THE HARD DISCS AND HELLO TO HVDS