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Guru

Join Date: Feb 2007
Location: Israel
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From Silicon Disk to Solid-State Memory: Maturing Now?

03/13/2007 1:10 AM

Considering current alternatives to HDD, such as the "old", Silicon Disk type:

http://www.globalspec.com/FeaturedProducts/Detail/ContecMicroelectronicsUSA/Silicon_Disk_Drives_V_Series/13056/0

to it's "new" rival types such as:

http://www.adtron.com/products/

and with the rapid drop in flash memory price, it is fair to assume the solid-state take-over, of traditional HDD role in PC (for scratch-padding and adaptable segment storage) in computers.

Maybe not yet so for permanent documents storage, after all, HDD is a proven and reliable technology, but still prone to some weird occurrences, one being described recently in:

http://cr4.globalspec.com/thread/5941#comment43908

If PDA and Cellular Phone technology are pointers to future PC-Application to any extent, it should be so because of it's outstanding performance in a relatively poor resource-base, meaning it's processing power and memory capacity. Many of those having ROM based OS of firmware, and flash memory for random access of data.

This is I think, a valuable lesson both Desktop and Laptop development, and some of the traits in these smart little gadgets take-on the big boys hands-down.

This mention was mainly in contrast to the lavish resource spread of means in PC versus such a (relatively) poor yield in efficiency, that is, when generally compared to PDA and Cellular.

Of course, when compared in absolute terms Desktop and to some extent Laptop are the best available to the private sector to-date, but this post is about mentality of design:

We all need predictable, reliable, fast, soft driven machines. The question is how to achieve it, with the best resource to yield ratio, because we collectively are a six-billion-resident global village, and the ecological clock is ticking faster than ever.

Yes, the type of memory used, may boil down to ecology.

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Participant

Join Date: Dec 2005
Posts: 4
#1

Re: From Silicon Disk to Solid-State Memory: Maturing Now?

03/14/2007 9:37 AM

Replacement of the HDD with flash memory is dependent on the relative cost of the two for the amount of storage desired. Currently, flash is less expensive for applications where the amount of storage is less than about 3 Gbytes, and industry can forsee that it will be competitive for storage of up to 10 Gbytes in the forseeable future. As volume increases, costs are expected to continue to drop and the flash memory industry is agressively working to become the storage system of the future.

However, the HDD industry is not standing still. It also continues to improve storage capacity and reduce costs to win this battle. Consider, for instance, how much it would cost to reproduce a 160 Gbyte HDD or the new Terabyte drives as flash, and you'll see that flash memory is not taking over those applications in the forseeable future. It leads the storage capacity of flash by two orders of magnitude, and is only starting it's next technology ramp. The HDD industry is also working hard to improve shock resistance, so that mobile computing applications still find the HDD the obvious choice. Interestingly, most companies that make hard disk drives also make flash memory, and they're putting the two together to improve disk performace.

Anyway, we're seeing two niche markets emerge: one for relatively small storage, and one for large storage, with flash filling the first niche and HDDs filling the second niche. The boundaries of the niches will trend upward, but until one of them stops progressing long enough for the economics of the other to backfill it, this can be expected to continue.

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Guru

Join Date: Feb 2007
Location: Israel
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#2
In reply to #1

Re: From Silicon Disk to Solid-State Memory: Maturing Now?

03/14/2007 10:04 AM

...most companies that make hard disk drives also make flash...

Indeed, this may be good news. Admittedly, I do not rush to compare the two technologies "head-to-head". Each with it's own pros and cons (by the way:...reproduce a 160 Gbyte HDD..., see: http://www.adtron.com/products/A25fb-SerialATAFlashDisk.html for 160 Gb flash).

The point I was trying to raise (using cheap flash as a tease) is that PDA's, using ROM OS's, and Flash cards as a kind of "replaceable HDD's", and relatively weak CPU's, manage to squeeze a lot out of the box, compared to the desktop and laptop industries with their lavish spread of means. My offered moto was something to the effect of: PDA's, because all the above mentioned, are more ecological, and this should be a directive, or at least a lesson, to the more "spoiled" industries. Shape-up or be shipped-out, you faties...

That was the spirit, anyway.

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