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Author Topic: Anyone know about the history of ram such as (DDR,DDR2,DDR3)?  (Read 6950 times)

Offline jasonchan123

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Can someone help me on this. I would like to know about the history of ram DDR,DDR2 & DDR3 for my assignment.
I have been searching through the net and I not sure which 1 is the true history.


 

Offline yuzuki

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Anyone know about the history of ram such as (DDR,DDR2,DDR3)?
« Reply #1 on: 07/11/2009 19:36:35 »
am not sure if this well help or not you can try wiki and answers to

i look up what i could but i hit up few friends see what thieve know

try this first got some info on it

newbielink:http://www.answers.com/topic/ram-disk [nonactive] go down to history part

hope it helps 
 

Offline Huxlly

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Anyone know about the history of ram such as (DDR,DDR2,DDR3)?
« Reply #2 on: 26/11/2009 08:45:57 »
I am searching about DDR(double data Rate), but only i know latest computer all DDR3 RAM). See somebody give the answer to you for original history of DDR1, DDR2, DDR3.
 

Offline nicephotog

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Anyone know about the history of ram such as (DDR,DDR2,DDR3)?
« Reply #3 on: 11/12/2009 05:10:11 »
Quote
jasonchan123: I have been searching through the net and I not sure which 1 is the true history.
You would be better searching through the international patents registration sight for the application dates.


Quote
Huxlly: I am searching about DDR(double data Rate),
At the very end of the x86 Intel P3 generation set and with Intel P4 is where DDR starts.
You can comprehend why easily too.

Processors(CPU) have two Frequency ratings, the first the CPU base frequency e.g. 1.2Ghz
The second the CPU BUS(Binary Unit Speed). The BUS frequency is "always" derived as a stepped down
Lower Side Band(LSB) "harmonic" of the CPU base frequency , hence when installing a CPU and setting the chipset jumpers or switches the manual will always refer to the base frequency and the harmonic in a "ratio chart" for which pins for the jumper or which position for the switchrs.

Because these new generations were much higher frequency, the RAM storage hardware "gate"(hardware charge storage for the binary unit (aka: address)) "semi-conductor "base(semi conductor electronics, e.g. NPN , PNP , or a Diode)" electrical breakdown" chemistry had to be changed to allow the higher frequencies while not committing rapid chemical deterioration from the higher frequencies.
« Last Edit: 11/12/2009 05:13:11 by nicephotog »
 

The Naked Scientists Forum

Anyone know about the history of ram such as (DDR,DDR2,DDR3)?
« Reply #3 on: 11/12/2009 05:10:11 »

 

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