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Hindsight
Joined: 02 Feb 2009
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 Posted: Wed Jan 20, 2010 9:33 am Post subject: "SDXC dramatically improves consumers� digital lifestyl |
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I was looking at a webpage by my camera manufacturer, and came across a reference to formatting SDXC cards.
So I did a search and found this:
SDXC
Massive Storage, Incredible Speed
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The next-generation SDXC memory card specification, released to members in April, 2009, dramatically improves consumers� digital lifestyles by increasing storage capacity from more than 32 GB up to 2 TB and increasing bus interface speed up to 104 MB per second in 2009 with a road map to 300 MB per second. SDXC's extended capacity will provide more portable storage and speed, which are often required to support new features in consumer electronic devices and mobile phones.
Before Using Your SDXC Memory Card
SDXC memory cards and SDXC devices have begun to reach the consumer market. As an early adopter of the new SDXC technology, it is important that you understand how to use your new SDXC memory card to its greatest capacity. |
http://www.sdcard.org/developers/tech/sdxc
No sign of SDXC on gmarket. Checked google.
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Still struggling to remember the difference between SD and SDHC? Then you don�t want to hear about SDXC, which is a new standard from the SD Association. Secure Digital eXtended Capacity is the new name and with it comes huge leaps in flash storage capacity. How much are we talking about? Up to two-Terabytes, which the SDA figures to be around 100 high-definition movies. |
A 2 terrabyte flash card? How many pictures could I take with my camera? I can't even begin to estimate that in my head, which can't wrap itself around 2 tb.
Price?
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As you would expect all of this high-end technology does not come cheaply, a 48GB SDXC card will cost you around $550, whereas a 64GB card will cost you around $700, Panasonic�s card reader will cost you $55. |
Yeah, but how much is the 2 tb card? $550 gazillion?
I have the feeling it's going to be awhile before a SDXC card is going to dramatically improve my lifestyle. But they could come in handy when those 200 megapixel cameras come out.
It looks like the SDXC cards will start shipping in Feb. I suspect the good news is it could eventually push down the SDHC prices. They seem to have held steady for about a year. It takes a higher capacity flash memory to push down the price of the older stuff. |
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blackjack
Joined: 04 Jan 2006
Location: anyang
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| Posted: Wed Jan 20, 2010 2:24 pm Post subject: |
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but imagine how much could fit on an SSD based on the same technology
2tb in an sd sized form |
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Hindsight
Joined: 02 Feb 2009
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| Posted: Sun Jan 24, 2010 12:25 am Post subject: |
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Flash memory would be great for a drive if it didn't fail faster than a disk hard drive. Some SD cards aren't as durable as others for write-erase cycles. Of course, for flash drives, they can have error correction. But how well does it work? And, of course, disk hard drives can have total failures.
I have seen adapters that allow you to use Compact Flash cards as hard drives. But for some reason CF cards are not getting as big as SD cards. |
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pkang0202
Joined: 09 Mar 2007
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| Posted: Sun Jan 24, 2010 2:28 am Post subject: |
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SDXC cards won't take off until USB 3.0 gets widespread adoption.
No one wants a 200GB flash card if it takes an entire day to read/write to it. |
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Hindsight
Joined: 02 Feb 2009
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| Posted: Sun Jan 24, 2010 5:56 am Post subject: |
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Hey, I'm running a 1 TB hard drive on USB 2. That's life.
As to SDXC cards taking off, it sounds like it's primarily a matter of updating firmware to get them to work on a camera or computer. They will be here before you know it, just as SDHC snuck up on us. But will they be reliable?
Since the dawn of personal computers, we have seen from time to time predictions of massive improvements in storage capacity or processing speed. They have been surprisingly accurate. It's called Moore's Law (in Korea, it's called Kim's Law or somesuch).
But for now, this is just a bunch of PR BS. They talk about 2 TB, but deliver 48 gb. For $600. And that's not even ready for sale yet. At the rate of Moore's Law, it's going to be quite a while before SDXC gets to 2 TB, and the press release ain't predicting when. Remember phantom ware?
If they do get to putting 2 TB on an SD card, that's going to be pretty mind blowing, though. Anyone want to film their own 3D movie?
Are they sure there's enough atoms on an SD card, though? |
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Hindsight
Joined: 02 Feb 2009
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| Posted: Wed Apr 07, 2010 7:10 pm Post subject: |
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H.P. Sees a Revolution in Memory Chip
By JOHN MARKOFF
PALO ALTO, Calif. � Hewlett-Packard scientists on Thursday are to report advances in the design of a new class of diminutive switches capable of replacing transistors as computer chips shrink closer to the atomic scale.
The devices, known as memristors, or memory resistors, were conceived in 1971 by Leon O. Chua, an electrical engineer at the University of California, Berkeley, but they were not put into effect until 2008 at the H.P. lab here.
They are simpler than today�s semiconducting transistors, can store information even in the absence of an electrical current and, according to a report in Nature, can be used for both data processing and storage applications.
In an interview at the H.P. research lab, Stan Williams, a company physicist, said that in the two years since announcing working devices, his team had increased their switching speed to match today�s conventional silicon transistors. The researchers had tested them in the laboratory, he added, proving they could reliably make hundreds of thousands of reads and writes.
The most advanced transistor technology today is based on minimum feature sizes of 30 to 40 nanometers � by contrast a biological virus is typically about 100 nanometers � and Dr. Williams said that H.P. now has working 3-nanometer memristors that can switch on and off in about a nanosecond, or a billionth of a second.
He said the company could have a competitor to flash memory in three years that would have a capacity of 20 gigabytes a square centimeter. |
http://www.nytimes.com/2010/04/08/science/08chips.html?hp
So whatever happened to IBM's revolutionary new technology, which they sold their hard drive division to fund?
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The new material offers an approach that is radically different from a promising type of storage called �phase-change memory� being pursued by I.B.M., Intel and other companies.
In a phase-change memory, heat is used to shift a glassy material from an amorphous to a crystalline state and back. The switching speed of these systems is slower and requires more power, the H.P. scientists say. |
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