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Trinary magnetic drive system

post #1 of 5
Thread Starter 
We all know drives are basically an extension of BIOS, they write magnetic signatures in positive and negative. But this in fact is very inefficient when magnetic signatures naturally have 3 states. Positive, negative, and no charge. If magnetic heads of a harddrive could tell the diffrence and write the 3 states, then our density would increase at an incredible rate.

11111111 is our 256 system of bits and bytes.
-1-1 -1 -1 -1 -1 -1 -1
3 9 27 81 243 729 2187 6561
So with 5 bits, we can very nearly reach with this magnetic trinary system as we can with a 8 bit magnetic binary system. That would make a greater density, as well as speed. Say nearly 50% faster than our conventional magnetic binary hard drives.
post #2 of 5
Great, how do you demagnetize something as easily as simply reversing its polarity?
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post #3 of 5
not to mention the fact that you would also have a problem reading data. since you have 2 states now, you can say that a voltage between -1 and -0.3 v is a 0 and a 1 with a voltage between .3 and 1. the part in the middle is not used because a slight discrepancy in voltage must not affect the read state. with 3 states your range for possible voltages shrinks dramatically, and it is very hard to accurately read data in this situation.

Also if data was stored this way all computer software would need to be either rewritten to use 3 states instead of 2 or would have to convert the data from 3 states to 2 every time it was used. This is so inefficient it would likely never be implemented
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post #4 of 5
Quote:
Originally Posted by selectstriker2 View Post
not to mention the fact that you would also have a problem reading data. since you have 2 states now, you can say that a voltage between -1 and -0.3 v is a 0 and a 1 with a voltage between .3 and 1. the part in the middle is not used because a slight discrepancy in voltage must not affect the read state. with 3 states your range for possible voltages shrinks dramatically, and it is very hard to accurately read data in this situation.

Also if data was stored this way all computer software would need to be either rewritten to use 3 states instead of 2 or would have to convert the data from 3 states to 2 every time it was used. This is so inefficient it would likely never be implemented
I'm guessing you would have some decoding layer worked out between the platters and the controller. That is assuming the platters can handle 3 states.
post #5 of 5
Thread Starter 
I would guess that it would require a decoding layer to be the most efficient. But the accuracy would need to be high.
Edited by Maelthras - 3/15/11 at 10:01am
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