Gen-nex --"HOLOGRAPHIC DATA STORAGE SYSTEM(HDSS)"

I `d recently participated in a paper presentation competition ... where i`d presented this as my paper ....
In current trends of data storage system (ie hard disks , CD , DVD) magnetic disks are dominant .
but from a survey last year 13 billion of such disks were sold so there is an ever increasing demand for new technique in data storage systems. to cater this demand HDSS is introduced which gives high data density and transfer rates

SOME AMAZING FACTS ABOUT HDSS:
1.This technique can store 1 tera bytes of data in just a sugar cube sized crystal!!!!
2.it can give Transfer rates up to whooping!!....1 billion bits /second !!!!
3. Data stored once is not damaged till 50years(at least)

HOW IT WORKS??:
Main steps in any data storage technique are recording n reading.

I)RECORDING:

Image above shows(courtesy : HSW) Simultaneous reading n recording ,it happens when this method is applied practically in our PC`s
But basically recording accounts optical change in the desired medium when data carrying, laser beam strikes it at given glancing angle.
That is,

1. Firstly laser beam is split into 2 by beam splitters
2. Then the data to be stored is converted to Gray scale(its dark n light boxes as when TV shows when there is no signal) by LCD
3. Then one of the beam(signal beam) strikes this LCD Thus carrying the data into it.
4. Then the other (reference beam) passes through several mirrors n lenses and interferes with signal beam to produce unique interference patterns( unique for that data obviously!!!)
   
5. These patterns are stored in some small VOLUME of the crystal.

II)READING:

Reading of data just requires the reference beam to strike or illuminate the crystal at the same glancing angle as in recording.

The path of reference beam ll be

laser->mirrors,lenses->crystal.

This illumination causes the crystal to produce the image of stored data on some screen or a CCD camera Which captures this image n processes this to required format

READING RECORDING in a NUTSHELL:

Data in any format-> converted to grey scale by LCD ->This image into interference patterns -> stored in crystal

Illumination->recording of gray scale image from crystal-> conversion to required format.

If any one wants the IEEE format of this paper or whole presentation mail me(bugs.rockr@gmail.com) ll reply ...

Thank U

_-FiReD Up 2 HeLp U-_

Start it now....

Once i was chatting with my distant friend .. he suddenly asked me "y did u start bloggin??"... i jus replied " 2 increse mah knowledge" ... he said that reading books was a better option...

But guys i`m telling you blogging helps just too much... So i replied him that i first read ,understand then blog.... thus this increses my knowledge...
Before starting this i was a dumb nut wasting time in not so useful works.... So i strongly suggest you too to create one and start enjoying .....
When u start it dont forget to inform me....

thanks

B-K0oL

_-FiReD Up 2 HeLp U-_

THEORY OF RELATIVITY SIMPLIFIED !!

Theory of relativity is a hard nut to crack,until we show interest in it. So this is a post for those who really want to understand and crack this hard nut.

After a week`s toil in understanding this theory i`ve got a good amount of success.

Common relativity is that,when you see a car moving in your direction of motion,it seems to go slow.

But when the speeds are comparable to C ie. speed of light its all different.

So how does light work?? here it is...

Consider that you are moving towards a lamp post with speed comparable to C,according to common concept of relativity you would think that the speed of light would be (C minus your speed),BUT thats not the case ,The speed of light you would measure, is the same ie. C!!!!

This is the basis of Albert einstien`s Theory which says "SPEED OF LIGHT IN VACCUM IS CONSTANt REGARDLESS OF SPEED OF SOURCE OR THE OBSERVER"

This shows that light is independent of relative speed of observer , that is something needs to give up or change ,to account this in-dependency of light.

and that changing parameter is TIME!!!

leaving this theory for time being lets consider a funny example

Assume you are moving away from earth to a star thats 10 light years away from our planet in a space ship with light's speed.

Then in your frame of reference you travel any distance in no time coz your speed (ie light's speed) is Infinity.

Now you go to that star take a round then return , you take only few minutes to do it as your speed is infinity.

But what bout the time at earth its the same. ie you have taken 20 years to return as star is 10 light years away.

Means when you return earth is 20 years older as you left!!

this is time travel !!

Hence we can say that time has slowed down for you!!!

When 2 twins come across this type of situations , the one who has travelled the star ll be 20 years younger than the other one who is on earth .....!!!!

this funny stuff is TWINS PARADOX

Seems confusing nah?

HOW ACTUALLY DOES TIME SLOW DOWN:

To explain this i`ve taken a clock as follows

Let there be two reflectors 1&2 as shown . And there is a reflecting laser beam between them. Let there be some device which makes a "TICK" sound when laser hits mirror1.

When this clock is stationery You ll hear That sound with some definite interval of time.

But When its moving with speed of light its traces a zigzag path as shown in fig

These are the positions of the clock at some time instances. light travels in a zigzag path here ,hence when we are stationary we hear the "TICK" at a larger time intervals, larger time intervals than earlier ie in 1st figure .

Hence in our time reference time has slow down for that clock when we are stationery.

I Strongly suggest you see the videos in the URL lists by the side.

Still cant ???understand send me your queries

Actually there are two types of this theory proposed by the genius

Albert einstien

I`ve not dealt on classifying them here.Its just an overview!!!

IF YOU WANT DEEPER KNOWLEDGE READ THIS PDF-BOOK WRITTEN BY GENIUS HIMSELF. AT http://infobugs.yolasite.com/resources/Einstein-Relativity.pdf

VIDEO SUGGESTIONS FOR UNDERSTANDING RELATIVITY

• Time travel(http://www.youtube.com/watch?v=V7vpw4AH8QQ)
• Time machine documetry(http://www.youtube.com/watch?v=imaq16YuEnE)
• Simultaneity - Albert Einstein and the Theory of Relativity(http://www.youtube.com/watch?v=wteiuxyqtoM)